76566725 has 24 divisors (see below), whose sum is σ = 101062728. Its totient is φ = 57344000.

The previous prime is 76566709. The next prime is 76566731. The reversal of 76566725 is 52766567.

It can be written as a sum of positive squares in 12 ways, for example, as 1623076 + 74943649 = 1274^2 + 8657^2 .

It is not a de Polignac number, because 76566725 - 2⁴ = 76566709 is a prime.

It is a Duffinian number.

Its product of digits (529200) is a multiple of the sum of its prime divisors (980).

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, 108875 + ... + 109575.

It is an arithmetic number, because the mean of its divisors is an integer number (4210947).

Almost surely, 2^76566725 is an apocalyptic number.

It is an amenable number.

76566725 is a deficient number, since it is larger than the sum of its proper divisors (24496003).

76566725 is a wasteful number, since it uses less digits than its factorization.

76566725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 980 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The square root of 76566725 is about 8750.2414252408. The cubic root of 76566725 is about 424.6326237025.

The spelling of 76566725 in words is "seventy-six million, five hundred sixty-six thousand, seven hundred twenty-five".