64782525 has 12 divisors (see below), whose sum is σ = 107107232. Its totient is φ = 34550640.

The previous prime is 64782503. The next prime is 64782527. The reversal of 64782525 is 52528746.

It is not a de Polignac number, because 64782525 - 2⁷ = 64782397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64782527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431809 + ... + 431958.

Almost surely, 2^64782525 is an apocalyptic number.

It is an amenable number.

64782525 is a deficient number, since it is larger than the sum of its proper divisors (42324707).

64782525 is a wasteful number, since it uses less digits than its factorization.

64782525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863780 (or 863775 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 64782525 is about 8048.7592211471. The cubic root of 64782525 is about 401.6236608130.

The spelling of 64782525 in words is "sixty-four million, seven hundred eighty-two thousand, five hundred twenty-five".