78573625 has 16 divisors (see below), whose sum is σ = 105605136. Its totient is φ = 58022400.

The previous prime is 78573619. The next prime is 78573679. The reversal of 78573625 is 52637587.

It can be written as a sum of positive squares in 8 ways, for example, as 61168041 + 17405584 = 7821^2 + 4172^2 .

It is not a de Polignac number, because 78573625 - 2²⁵ = 45019193 is a prime.

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, 22552 + ... + 25801.

It is an arithmetic number, because the mean of its divisors is an integer number (6600321).

Almost surely, 2^78573625 is an apocalyptic number.

It is an amenable number.

78573625 is a deficient number, since it is larger than the sum of its proper divisors (27031511).

78573625 is a wasteful number, since it uses less digits than its factorization.

78573625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48381 (or 48371 counting only the distinct ones).

The product of its digits is 352800, while the sum is 43.

The square root of 78573625 is about 8864.1764986941. The cubic root of 78573625 is about 428.3107058387.

The spelling of 78573625 in words is "seventy-eight million, five hundred seventy-three thousand, six hundred twenty-five".