79142025 has 24 divisors (see below), whose sum is σ = 131268384. Its totient is φ = 42073600.

The previous prime is 79142017. The next prime is 79142029. The reversal of 79142025 is 52024197.

It is not a de Polignac number, because 79142025 - 2³ = 79142017 is a prime.

It is a super-2 number, since 2×79142025² = 12526920242201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79141983 and 79142001.

It is not an unprimeable number, because it can be changed into a prime (79142029) 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, 24505 + ... + 27545.

It is an arithmetic number, because the mean of its divisors is an integer number (5469516).

Almost surely, 2^79142025 is an apocalyptic number.

79142025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79142025 is a deficient number, since it is larger than the sum of its proper divisors (52126359).

79142025 is a wasteful number, since it uses less digits than its factorization.

79142025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3396 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 79142025 is about 8896.1803601321. The cubic root of 79142025 is about 429.3410223575.

The spelling of 79142025 in words is "seventy-nine million, one hundred forty-two thousand, twenty-five".