78325504 has 36 divisors (see below), whose sum is σ = 157060960. Its totient is φ = 38983680.

The previous prime is 78325483. The next prime is 78325517. The reversal of 78325504 is 40552387.

It is a happy number.

It is a super-2 number, since 2×78325504² = 12269769153708032, 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 78325504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68812 + ... + 69940.

Almost surely, 2^78325504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78325504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78530480).

78325504 is an abundant number, since it is smaller than the sum of its proper divisors (78735456).

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

78325504 is a wasteful number, since it uses less digits than its factorization.

78325504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 78325504 is about 8850.1697158868. The cubic root of 78325504 is about 427.8593884037.

The spelling of 78325504 in words is "seventy-eight million, three hundred twenty-five thousand, five hundred four".