77525116 has 12 divisors (see below), whose sum is σ = 137068288. Its totient is φ = 38362752.

The previous prime is 77525093. The next prime is 77525131. The reversal of 77525116 is 61152577.

It is a happy number.

It is a super-2 number, since 2×77525116² = 12020287221626912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99516 + ... + 100291.

Almost surely, 2^77525116 is an apocalyptic number.

It is an amenable number.

77525116 is a deficient number, since it is larger than the sum of its proper divisors (59543172).

77525116 is a wasteful number, since it uses less digits than its factorization.

77525116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199908 (or 199906 counting only the distinct ones).

The product of its digits is 14700, while the sum is 34.

The square root of 77525116 is about 8804.8348082176. The cubic root of 77525116 is about 426.3970010948.

Subtracting from 77525116 its product of digits (14700), we obtain a square (77510416 = 8804²).

The spelling of 77525116 in words is "seventy-seven million, five hundred twenty-five thousand, one hundred sixteen".