64712525 has 6 divisors (see below), whose sum is σ = 80243562. Its totient is φ = 51770000.

The previous prime is 64712513. The next prime is 64712533. The reversal of 64712525 is 52521746.

It can be written as a sum of positive squares in 3 ways, for example, as 1684804 + 63027721 = 1298^2 + 7939^2 .

It is not a de Polignac number, because 64712525 - 2¹⁴ = 64696141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64712491 and 64712500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1294226 + ... + 1294275.

It is an arithmetic number, because the mean of its divisors is an integer number (13373927).

Almost surely, 2^64712525 is an apocalyptic number.

It is an amenable number.

64712525 is a deficient number, since it is larger than the sum of its proper divisors (15531037).

64712525 is a wasteful number, since it uses less digits than its factorization.

64712525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588511 (or 2588506 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 64712525 is about 8044.4095494946. The cubic root of 64712525 is about 401.4789520957.

The spelling of 64712525 in words is "sixty-four million, seven hundred twelve thousand, five hundred twenty-five".