64525005 has 48 divisors (see below), whose sum is σ = 121080960. Its totient is φ = 32902848.

The previous prime is 64524991. The next prime is 64525037. The reversal of 64525005 is 50052546.

It is not a de Polignac number, because 64525005 - 2¹¹ = 64522957 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 64525005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26791 + ... + 29099.

It is an arithmetic number, because the mean of its divisors is an integer number (2522520).

Almost surely, 2^64525005 is an apocalyptic number.

It is an amenable number.

64525005 is a deficient number, since it is larger than the sum of its proper divisors (56555955).

64525005 is a wasteful number, since it uses less digits than its factorization.

64525005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 64525005 is about 8032.7457945587. The cubic root of 64525005 is about 401.0907831929.

The spelling of 64525005 in words is "sixty-four million, five hundred twenty-five thousand, five".