79450825 has 12 divisors (see below), whose sum is σ = 100923228. Its totient is φ = 62009600.

The previous prime is 79450793. The next prime is 79450831. The reversal of 79450825 is 52805497.

It can be written as a sum of positive squares in 6 ways, for example, as 1375929 + 78074896 = 1173^2 + 8836^2 .

It is not a de Polignac number, because 79450825 - 2⁵ = 79450793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37732 + ... + 39781.

It is an arithmetic number, because the mean of its divisors is an integer number (8410269).

Almost surely, 2^79450825 is an apocalyptic number.

It is an amenable number.

79450825 is a deficient number, since it is larger than the sum of its proper divisors (21472403).

79450825 is a wasteful number, since it uses less digits than its factorization.

79450825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77564 (or 77559 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 79450825 is about 8913.5192264335. The cubic root of 79450825 is about 429.8987051826.

The spelling of 79450825 in words is "seventy-nine million, four hundred fifty thousand, eight hundred twenty-five".