625629540923 has 4 divisors (see below), whose sum is σ = 625717306440. Its totient is φ = 625541775408.

The previous prime is 625629540919. The next prime is 625629540937. The reversal of 625629540923 is 329045926526.

625629540923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 625629540923 - 2² = 625629540919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625629540973) 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, 43872065 + ... + 43886322.

It is an arithmetic number, because the mean of its divisors is an integer number (156429326610).

Almost surely, 2^625629540923 is an apocalyptic number.

625629540923 is a deficient number, since it is larger than the sum of its proper divisors (87765517).

625629540923 is an equidigital number, since it uses as much as digits as its factorization.

625629540923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87765516.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 625629540923 in words is "six hundred twenty-five billion, six hundred twenty-nine million, five hundred forty thousand, nine hundred twenty-three".