74720825 has 12 divisors (see below), whose sum is σ = 97530960. Its totient is φ = 56630160.

The previous prime is 74720803. The next prime is 74720827. The reversal of 74720825 is 52802747.

It is not a de Polignac number, because 74720825 - 2⁶ = 74720761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74720827) 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, 78179 + ... + 79128.

It is an arithmetic number, because the mean of its divisors is an integer number (8127580).

Almost surely, 2^74720825 is an apocalyptic number.

It is an amenable number.

74720825 is a deficient number, since it is larger than the sum of its proper divisors (22810135).

74720825 is a wasteful number, since it uses less digits than its factorization.

74720825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157336 (or 157331 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 74720825 is about 8644.1208344169. The cubic root of 74720825 is about 421.1924258061.

The spelling of 74720825 in words is "seventy-four million, seven hundred twenty thousand, eight hundred twenty-five".