76640125 has 24 divisors (see below), whose sum is σ = 97900920. Its totient is φ = 59892800.

The previous prime is 76640119. The next prime is 76640171. The reversal of 76640125 is 52104667.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10478169 + 66161956 = 3237^2 + 8134^2 .

It is not a de Polignac number, because 76640125 - 2⁵ = 76640093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 861081 + ... + 861169.

It is an arithmetic number, because the mean of its divisors is an integer number (4079205).

Almost surely, 2^76640125 is an apocalyptic number.

It is an amenable number.

76640125 is a deficient number, since it is larger than the sum of its proper divisors (21260795).

76640125 is an frugal number, since it uses more digits than its factorization.

76640125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 76640125 is about 8754.4345905375. The cubic root of 76640125 is about 424.7682704438.

The spelling of 76640125 in words is "seventy-six million, six hundred forty thousand, one hundred twenty-five".