64464025 has 24 divisors (see below), whose sum is σ = 82744704. Its totient is φ = 49790400.

The previous prime is 64464019. The next prime is 64464041. The reversal of 64464025 is 52046446.

It is not a de Polignac number, because 64464025 - 2⁹ = 64463513 is a prime.

It is a super-2 number, since 2×64464025² = 8311221038401250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97195 + ... + 97855.

It is an arithmetic number, because the mean of its divisors is an integer number (3447696).

Almost surely, 2^64464025 is an apocalyptic number.

It is an amenable number.

64464025 is a deficient number, since it is larger than the sum of its proper divisors (18280679).

64464025 is a wasteful number, since it uses less digits than its factorization.

64464025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 64464025 is about 8028.9491840464. The cubic root of 64464025 is about 400.9643917528.

The spelling of 64464025 in words is "sixty-four million, four hundred sixty-four thousand, twenty-five".