79775425 has 6 divisors (see below), whose sum is σ = 98921558. Its totient is φ = 63820320.

The previous prime is 79775413. The next prime is 79775461. The reversal of 79775425 is 52457797.

It can be written as a sum of positive squares in 3 ways, for example, as 494209 + 79281216 = 703^2 + 8904^2 .

It is not a de Polignac number, because 79775425 - 2⁹ = 79774913 is a prime.

It is a Duffinian 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, 1595484 + ... + 1595533.

Almost surely, 2^79775425 is an apocalyptic number.

It is an amenable number.

79775425 is a deficient number, since it is larger than the sum of its proper divisors (19146133).

79775425 is a wasteful number, since it uses less digits than its factorization.

79775425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191027 (or 3191022 counting only the distinct ones).

The product of its digits is 617400, while the sum is 46.

The square root of 79775425 is about 8931.7089630149. The cubic root of 79775425 is about 430.4833666616.

It can be divided in two parts, 79775 and 425, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 79775425 in words is "seventy-nine million, seven hundred seventy-five thousand, four hundred twenty-five".