625980090 has 32 divisors (see below), whose sum is σ = 1505869056. Its totient is φ = 166537280.

The previous prime is 625980083. The next prime is 625980101. The reversal of 625980090 is 90089526.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11277 + ... + 37136.

It is an arithmetic number, because the mean of its divisors is an integer number (47058408).

Almost surely, 2^625980090 is an apocalyptic number.

625980090 is an abundant number, since it is smaller than the sum of its proper divisors (879888966).

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

625980090 is a wasteful number, since it uses less digits than its factorization.

625980090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48854.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 625980090 is about 25019.5941214081. The cubic root of 625980090 is about 855.4346546862.

The spelling of 625980090 in words is "six hundred twenty-five million, nine hundred eighty thousand, ninety".