78057925 has 24 divisors (see below), whose sum is σ = 106957440. Its totient is φ = 56035200.

The previous prime is 78057919. The next prime is 78057977. The reversal of 78057925 is 52975087.

It is not a de Polignac number, because 78057925 - 2⁵ = 78057893 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19929 + ... + 23521.

It is an arithmetic number, because the mean of its divisors is an integer number (4456560).

Almost surely, 2^78057925 is an apocalyptic number.

It is an amenable number.

78057925 is a deficient number, since it is larger than the sum of its proper divisors (28899515).

78057925 is a wasteful number, since it uses less digits than its factorization.

78057925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693 (or 3688 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 78057925 is about 8835.0396150781. The cubic root of 78057925 is about 427.3716085604.

The spelling of 78057925 in words is "seventy-eight million, fifty-seven thousand, nine hundred twenty-five".