625620045 has 16 divisors (see below), whose sum is σ = 1035509760. Its totient is φ = 322158144.

The previous prime is 625620041. The next prime is 625620059. The reversal of 625620045 is 540026526.

It is not a de Polignac number, because 625620045 - 2² = 625620041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625619994 and 625620021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625620041) 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 15 ways as a sum of consecutive naturals, for example, 718669 + ... + 719538.

It is an arithmetic number, because the mean of its divisors is an integer number (64719360).

Almost surely, 2^625620045 is an apocalyptic number.

It is an amenable number.

625620045 is a deficient number, since it is larger than the sum of its proper divisors (409889715).

625620045 is a wasteful number, since it uses less digits than its factorization.

625620045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438244.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 625620045 is about 25012.3978258783. The cubic root of 625620045 is about 855.2706164344.

The spelling of 625620045 in words is "six hundred twenty-five million, six hundred twenty thousand, forty-five".