76224725 has 6 divisors (see below), whose sum is σ = 94518690. Its totient is φ = 60979760.

The previous prime is 76224703. The next prime is 76224739. The reversal of 76224725 is 52742267.

It can be written as a sum of positive squares in 3 ways, for example, as 10387729 + 65836996 = 3223^2 + 8114^2 .

It is not a de Polignac number, because 76224725 - 2⁶ = 76224661 is a prime.

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, 1524470 + ... + 1524519.

It is an arithmetic number, because the mean of its divisors is an integer number (15753115).

Almost surely, 2^76224725 is an apocalyptic number.

It is an amenable number.

76224725 is a deficient number, since it is larger than the sum of its proper divisors (18293965).

76224725 is a wasteful number, since it uses less digits than its factorization.

76224725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048999 (or 3048994 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 76224725 is about 8730.6772360453. The cubic root of 76224725 is about 423.9994456057. Note that the first 3 decimals are identical.

The spelling of 76224725 in words is "seventy-six million, two hundred twenty-four thousand, seven hundred twenty-five".