64437025 has 12 divisors (see below), whose sum is σ = 80205184. Its totient is φ = 51354000.

The previous prime is 64437019. The next prime is 64437031. The reversal of 64437025 is 52073446.

It is an interprime number because it is at equal distance from previous prime (64437019) and next prime (64437031).

It is not a de Polignac number, because 64437025 - 2⁵ = 64436993 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2020 + ... + 11530.

Almost surely, 2^64437025 is an apocalyptic number.

It is an amenable number.

64437025 is a deficient number, since it is larger than the sum of its proper divisors (15768159).

64437025 is a wasteful number, since it uses less digits than its factorization.

64437025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792 (or 9787 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 64437025 is about 8027.2675924003. The cubic root of 64437025 is about 400.9084041929.

The spelling of 64437025 in words is "sixty-four million, four hundred thirty-seven thousand, twenty-five".