64925190 has 48 divisors (see below), whose sum is σ = 184154256. Its totient is φ = 15739200.

The previous prime is 64925149. The next prime is 64925197. The reversal of 64925190 is 9152946.

64925190 is a `hidden beast` number, since 649 + 2 + 5 + 1 + 9 + 0 = 666.

It is a super-2 number, since 2×64925190² = 8430560593072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64925197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31801 + ... + 33780.

It is an arithmetic number, because the mean of its divisors is an integer number (3836547).

Almost surely, 2^64925190 is an apocalyptic number.

64925190 is an abundant number, since it is smaller than the sum of its proper divisors (119229066).

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

64925190 is a wasteful number, since it uses less digits than its factorization.

64925190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605 (or 65602 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 64925190 is about 8057.6168933500. The cubic root of 64925190 is about 401.9182651084.

The spelling of 64925190 in words is "sixty-four million, nine hundred twenty-five thousand, one hundred ninety".