76561525 has 6 divisors (see below), whose sum is σ = 94936322. Its totient is φ = 61249200.

The previous prime is 76561519. The next prime is 76561531. The reversal of 76561525 is 52516567.

It is an interprime number because it is at equal distance from previous prime (76561519) and next prime (76561531).

It can be written as a sum of positive squares in 3 ways, for example, as 3407716 + 73153809 = 1846^2 + 8553^2 .

It is not a de Polignac number, because 76561525 - 2⁵ = 76561493 is a prime.

It is a super-2 number, since 2×76561525² = 11723334220651250, which contains 22 as substring.

It is a Duffinian number.

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, 1531206 + ... + 1531255.

Almost surely, 2^76561525 is an apocalyptic number.

It is an amenable number.

76561525 is a deficient number, since it is larger than the sum of its proper divisors (18374797).

76561525 is a wasteful number, since it uses less digits than its factorization.

76561525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062471 (or 3062466 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 76561525 is about 8749.9442855369. The cubic root of 76561525 is about 424.6230105638.

The spelling of 76561525 in words is "seventy-six million, five hundred sixty-one thousand, five hundred twenty-five".