625765165056023 has 4 divisors (see below), whose sum is σ = 625766603083440. Its totient is φ = 625763727028608.

The previous prime is 625765165056011. The next prime is 625765165056089. The reversal of 625765165056023 is 320650561567526.

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

It is a cyclic number.

It is not a de Polignac number, because 625765165056023 - 2¹² = 625765165051927 is a prime.

It is a super-3 number, since 3×625765165056023³ (a number of 45 digits) contains 333 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 (625765165056923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718360778 + ... + 719231351.

It is an arithmetic number, because the mean of its divisors is an integer number (156441650770860).

Almost surely, 2^{625765165056023} is an apocalyptic number.

625765165056023 is a deficient number, since it is larger than the sum of its proper divisors (1438027417).

625765165056023 is a wasteful number, since it uses less digits than its factorization.

625765165056023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438027416.

The product of its (nonzero) digits is 68040000, while the sum is 59.

The spelling of 625765165056023 in words is "six hundred twenty-five trillion, seven hundred sixty-five billion, one hundred sixty-five million, fifty-six thousand, twenty-three".