64525 has 12 divisors (see below), whose sum is σ = 83700. Its totient is φ = 49280.

The previous prime is 64513. The next prime is 64553. The reversal of 64525 is 52546.

It can be written as a sum of positive squares in 6 ways, for example, as 5476 + 59049 = 74^2 + 243^2 .

It is not a de Polignac number, because 64525 - 2⁹ = 64013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64496 and 64505.

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, 681 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (6975).

2⁶⁴⁵²⁵ is an apocalyptic number.

It is an amenable number.

64525 is a deficient number, since it is larger than the sum of its proper divisors (19175).

64525 is a wasteful number, since it uses less digits than its factorization.

64525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 123 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 64525 is about 254.0177159176. The cubic root of 64525 is about 40.1090772833.

The spelling of 64525 in words is "sixty-four thousand, five hundred twenty-five".