79252515 has 24 divisors (see below), whose sum is σ = 144602640. Its totient is φ = 40042944.

The previous prime is 79252513. The next prime is 79252519. The reversal of 79252515 is 51525297.

79252515 is a `hidden beast` number, since 7 + 92 + 52 + 515 = 666.

It is not a de Polignac number, because 79252515 - 2¹ = 79252513 is a prime.

It is a super-2 number, since 2×79252515² = 12561922267650450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79252515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79252513) 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, 45492 + ... + 47201.

It is an arithmetic number, because the mean of its divisors is an integer number (6025110).

Almost surely, 2^79252515 is an apocalyptic number.

79252515 is a deficient number, since it is larger than the sum of its proper divisors (65350125).

79252515 is a wasteful number, since it uses less digits than its factorization.

79252515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92723 (or 92720 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 79252515 is about 8902.3881627348. The cubic root of 79252515 is about 429.5407301220.

It can be divided in two parts, 7925 and 2515, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 79252515 in words is "seventy-nine million, two hundred fifty-two thousand, five hundred fifteen".