78524125 has 8 divisors (see below), whose sum is σ = 97998264. Its totient is φ = 62819200.

The previous prime is 78524113. The next prime is 78524177. The reversal of 78524125 is 52142587.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21279769 + 57244356 = 4613^2 + 7566^2 .

It is not a de Polignac number, because 78524125 - 2¹¹ = 78522077 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313972 + ... + 314221.

It is an arithmetic number, because the mean of its divisors is an integer number (12249783).

Almost surely, 2^78524125 is an apocalyptic number.

It is an amenable number.

78524125 is a deficient number, since it is larger than the sum of its proper divisors (19474139).

78524125 is an equidigital number, since it uses as much as digits as its factorization.

78524125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628208 (or 628198 counting only the distinct ones).

The product of its digits is 22400, while the sum is 34.

The square root of 78524125 is about 8861.3839212620. The cubic root of 78524125 is about 428.2207442107.

The spelling of 78524125 in words is "seventy-eight million, five hundred twenty-four thousand, one hundred twenty-five".