76725513 has 12 divisors (see below), whose sum is σ = 110908980. Its totient is φ = 51111936.

The previous prime is 76725491. The next prime is 76725557. The reversal of 76725513 is 31552767.

76725513 is a `hidden beast` number, since 76 + 72 + 5 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11309769 + 65415744 = 3363^2 + 8088^2 .

It is not a de Polignac number, because 76725513 - 2¹⁶ = 76659977 is a prime.

It is a super-2 number, since 2×76725513² = 11773608690226338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76725563) 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, 14745 + ... + 19257.

It is an arithmetic number, because the mean of its divisors is an integer number (9242415).

Almost surely, 2^76725513 is an apocalyptic number.

It is an amenable number.

76725513 is a deficient number, since it is larger than the sum of its proper divisors (34183467).

76725513 is a wasteful number, since it uses less digits than its factorization.

76725513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 6405 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 76725513 is about 8759.3100755710. The cubic root of 76725513 is about 424.9259626509.

The spelling of 76725513 in words is "seventy-six million, seven hundred twenty-five thousand, five hundred thirteen".