79481025 has 72 divisors (see below), whose sum is σ = 158765880. Its totient is φ = 37739520.

The previous prime is 79481023. The next prime is 79481057. The reversal of 79481025 is 52018497.

It can be written as a sum of positive squares in 12 ways, for example, as 55890576 + 23590449 = 7476^2 + 4857^2 .

It is not a de Polignac number, because 79481025 - 2¹ = 79481023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79481023) 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, 84357 + ... + 85293.

Almost surely, 2^79481025 is an apocalyptic number.

79481025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79481025 is a deficient number, since it is larger than the sum of its proper divisors (79284855).

79481025 is a wasteful number, since it uses less digits than its factorization.

79481025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 79481025 is about 8915.2131214010. The cubic root of 79481025 is about 429.9531677858.

The spelling of 79481025 in words is "seventy-nine million, four hundred eighty-one thousand, twenty-five".