625245645 has 16 divisors (see below), whose sum is σ = 1001757312. Its totient is φ = 333009600.

The previous prime is 625245641. The next prime is 625245679. The reversal of 625245645 is 546542526.

It is not a de Polignac number, because 625245645 - 2² = 625245641 is a prime.

It is a super-3 number, since 3×625245645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625245641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16906 + ... + 39195.

It is an arithmetic number, because the mean of its divisors is an integer number (62609832).

Almost surely, 2^625245645 is an apocalyptic number.

It is an amenable number.

625245645 is a deficient number, since it is larger than the sum of its proper divisors (376511667).

625245645 is a wasteful number, since it uses less digits than its factorization.

625245645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56852.

The product of its digits is 288000, while the sum is 39.

The square root of 625245645 is about 25004.9124173631. The cubic root of 625245645 is about 855.0999712111.

The spelling of 625245645 in words is "six hundred twenty-five million, two hundred forty-five thousand, six hundred forty-five".