64910525 has 12 divisors (see below), whose sum is σ = 82203072. Its totient is φ = 50822640.

The previous prime is 64910513. The next prime is 64910533. The reversal of 64910525 is 52501946.

It is a happy number.

It is not a de Polignac number, because 64910525 - 2¹⁰ = 64909501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64910491 and 64910500.

It is a congruent 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, 26447 + ... + 28796.

It is an arithmetic number, because the mean of its divisors is an integer number (6850256).

Almost surely, 2^64910525 is an apocalyptic number.

It is an amenable number.

64910525 is a deficient number, since it is larger than the sum of its proper divisors (17292547).

64910525 is a wasteful number, since it uses less digits than its factorization.

64910525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55300 (or 55295 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 64910525 is about 8056.7068334401. The cubic root of 64910525 is about 401.8880016868. Note that the first 3 decimals are identical.

The spelling of 64910525 in words is "sixty-four million, nine hundred ten thousand, five hundred twenty-five".