79142525 has 24 divisors (see below), whose sum is σ = 122355264. Its totient is φ = 49334400.

The previous prime is 79142521. The next prime is 79142533. The reversal of 79142525 is 52524197.

It is not a de Polignac number, because 79142525 - 2² = 79142521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79142521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18632 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (5098136).

Almost surely, 2^79142525 is an apocalyptic number.

It is an amenable number.

79142525 is a deficient number, since it is larger than the sum of its proper divisors (43212739).

79142525 is a wasteful number, since it uses less digits than its factorization.

79142525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41141 (or 41136 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 79142525 is about 8896.2084620359. The cubic root of 79142525 is about 429.3419265128.

The spelling of 79142525 in words is "seventy-nine million, one hundred forty-two thousand, five hundred twenty-five".