625499790 has 16 divisors (see below), whose sum is σ = 1501199568. Its totient is φ = 166799936.

The previous prime is 625499773. The next prime is 625499807. The reversal of 625499790 is 97994526.

It is an interprime number because it is at equal distance from previous prime (625499773) and next prime (625499807).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10424967 + ... + 10425026.

It is an arithmetic number, because the mean of its divisors is an integer number (93824973).

Almost surely, 2^625499790 is an apocalyptic number.

625499790 is an abundant number, since it is smaller than the sum of its proper divisors (875699778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625499790 is a wasteful number, since it uses less digits than its factorization.

625499790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20850003.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The square root of 625499790 is about 25009.9938024782. The cubic root of 625499790 is about 855.2158136515.

The spelling of 625499790 in words is "six hundred twenty-five million, four hundred ninety-nine thousand, seven hundred ninety".