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53430325 = 5213295669
BaseRepresentation
bin1100101111010…
…0100000110101
310201112112121221
43023310200311
5102134232300
65145110341
71216102354
oct313644065
9121475557
1053430325
1128183aa3
1215a883b1
13b0b98a0
14714b99b
154a5631a
hex32f4835

53430325 has 24 divisors (see below), whose sum is σ = 73823400. Its totient is φ = 38088960.

The previous prime is 53430319. The next prime is 53430347. The reversal of 53430325 is 52303435.

It is a happy number.

53430325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 30371121 + 23059204 = 5511^2 + 4802^2 .

It is not a de Polignac number, because 53430325 - 27 = 53430197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 53430325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6591 + ... + 12259.

It is an arithmetic number, because the mean of its divisors is an integer number (3075975).

Almost surely, 253430325 is an apocalyptic number.

It is an amenable number.

53430325 is a deficient number, since it is larger than the sum of its proper divisors (20393075).

53430325 is a wasteful number, since it uses less digits than its factorization.

53430325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 53430325 is about 7309.6049824871. The cubic root of 53430325 is about 376.6424550009.

The spelling of 53430325 in words is "fifty-three million, four hundred thirty thousand, three hundred twenty-five".

Divisors: 1 5 13 25 29 65 145 325 377 725 1885 5669 9425 28345 73697 141725 164401 368485 822005 1842425 2137213 4110025 10686065 53430325