78532375 has 16 divisors (see below), whose sum is σ = 99481824. Its totient is φ = 61881600.

The previous prime is 78532361. The next prime is 78532381. The reversal of 78532375 is 57323587.

It is not a de Polignac number, because 78532375 - 2²¹ = 76435223 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3687 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (6217614).

Almost surely, 2^78532375 is an apocalyptic number.

78532375 is a deficient number, since it is larger than the sum of its proper divisors (20949449).

78532375 is an equidigital number, since it uses as much as digits as its factorization.

78532375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9459 (or 9449 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 78532375 is about 8861.8494119456. The cubic root of 78532375 is about 428.2357404403.

The spelling of 78532375 in words is "seventy-eight million, five hundred thirty-two thousand, three hundred seventy-five".