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53019775 = 526313361
BaseRepresentation
bin1100101001000…
…0010001111111
310200202200110101
43022100101333
5102033113100
65132221531
71212442414
oct312202177
9120680411
1053019775
1127a235a6
121590a8a7
13aca4a63
14708210b
1549c486a
hex329047f

53019775 has 12 divisors (see below), whose sum is σ = 65868304. Its totient is φ = 42336000.

The previous prime is 53019773. The next prime is 53019781. The reversal of 53019775 is 57791035.

It is a happy number.

53019775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53019775 - 21 = 53019773 is a prime.

It is a super-2 number, since 2×530197752 = 5622193082101250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53019773) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14095 + ... + 17455.

Almost surely, 253019775 is an apocalyptic number.

53019775 is a deficient number, since it is larger than the sum of its proper divisors (12848529).

53019775 is a wasteful number, since it uses less digits than its factorization.

53019775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 53019775 is about 7281.4679151940. The cubic root of 53019775 is about 375.6752869406.

The spelling of 53019775 in words is "fifty-three million, nineteen thousand, seven hundred seventy-five".

Divisors: 1 5 25 631 3155 3361 15775 16805 84025 2120791 10603955 53019775