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53535253 = 149359297
BaseRepresentation
bin1100110000111…
…0001000010101
310201201212120011
43030032020111
5102201112003
65151240221
71220020312
oct314161025
9121655504
1053535253
1128245912
1215b19071
13b125585
147177d09
154a7746d
hex330e215

53535253 has 4 divisors (see below), whose sum is σ = 53894700. Its totient is φ = 53175808.

The previous prime is 53535197. The next prime is 53535257. The reversal of 53535253 is 35253535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35253535 = 57050707.

It can be written as a sum of positive squares in 2 ways, for example, as 14884164 + 38651089 = 3858^2 + 6217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53535253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53535257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179500 + ... + 179797.

It is an arithmetic number, because the mean of its divisors is an integer number (13473675).

Almost surely, 253535253 is an apocalyptic number.

It is an amenable number.

53535253 is a deficient number, since it is larger than the sum of its proper divisors (359447).

53535253 is a wasteful number, since it uses less digits than its factorization.

53535253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359446.

The product of its digits is 33750, while the sum is 31.

The square root of 53535253 is about 7316.7788677805. The cubic root of 53535253 is about 376.8888475212. Note that the first 4 decimals are identical.

Adding to 53535253 its reverse (35253535), we get a palindrome (88788788).

The spelling of 53535253 in words is "fifty-three million, five hundred thirty-five thousand, two hundred fifty-three".

Divisors: 1 149 359297 53535253