78792525 has 72 divisors (see below), whose sum is σ = 169840320. Its totient is φ = 34110720.

The previous prime is 78792523. The next prime is 78792533. The reversal of 78792525 is 52529787.

It is a happy number.

It is not a de Polignac number, because 78792525 - 2¹ = 78792523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78792523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28609 + ... + 31241.

Almost surely, 2^78792525 is an apocalyptic number.

78792525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78792525 is an abundant number, since it is smaller than the sum of its proper divisors (91047795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78792525 is a wasteful number, since it uses less digits than its factorization.

78792525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675 (or 2667 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 78792525 is about 8876.5153635872. The cubic root of 78792525 is about 428.7080838021.

It can be divided in two parts, 7879 and 2525, that added together give a square (10404 = 102²).

The spelling of 78792525 in words is "seventy-eight million, seven hundred ninety-two thousand, five hundred twenty-five".