79090425 has 72 divisors (see below), whose sum is σ = 150573696. Its totient is φ = 41135040.

The previous prime is 79090421. The next prime is 79090447. The reversal of 79090425 is 52409097.

It is not a de Polignac number, because 79090425 - 2² = 79090421 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79090425.

It is not an unprimeable number, because it can be changed into a prime (79090421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 285387 + ... + 285663.

Almost surely, 2^79090425 is an apocalyptic number.

79090425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79090425 is a deficient number, since it is larger than the sum of its proper divisors (71483271).

79090425 is a wasteful number, since it uses less digits than its factorization.

79090425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 79090425 is about 8893.2797662055. The cubic root of 79090425 is about 429.2476930412.

The spelling of 79090425 in words is "seventy-nine million, ninety thousand, four hundred twenty-five".