52857153365 has 4 divisors (see below), whose sum is σ = 63428584044. Its totient is φ = 42285722688.

The previous prime is 52857153343. The next prime is 52857153397. The reversal of 52857153365 is 56335175825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23985026641 + 28872126724 = 154871^2 + 169918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52857153365 is a prime.

It is a super-2 number, since 2×52857153365² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5285715332 + ... + 5285715341.

It is an arithmetic number, because the mean of its divisors is an integer number (15857146011).

Almost surely, 2^52857153365 is an apocalyptic number.

It is an amenable number.

52857153365 is a deficient number, since it is larger than the sum of its proper divisors (10571430679).

52857153365 is a wasteful number, since it uses less digits than its factorization.

52857153365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571430678.

The product of its digits is 3780000, while the sum is 50.

The spelling of 52857153365 in words is "fifty-two billion, eight hundred fifty-seven million, one hundred fifty-three thousand, three hundred sixty-five".