64252900 has 18 divisors (see below), whose sum is σ = 139429010. Its totient is φ = 25701120.

The previous prime is 64252891. The next prime is 64252919. The reversal of 64252900 is 925246.

It can be written as a sum of positive squares in 3 ways, for example, as 763876 + 63489024 = 874^2 + 7968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321165 + ... + 321364.

Almost surely, 2^64252900 is an apocalyptic number.

It is an amenable number.

64252900 is an abundant number, since it is smaller than the sum of its proper divisors (75176110).

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

64252900 is a wasteful number, since it uses less digits than its factorization.

64252900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642543 (or 642536 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 64252900 is about 8015.7906659293. The cubic root of 64252900 is about 400.5261825264.

The spelling of 64252900 in words is "sixty-four million, two hundred fifty-two thousand, nine hundred".