53975978 has 16 divisors (see below), whose sum is σ = 92672640. Its totient is φ = 23096976.

The previous prime is 53975959. The next prime is 53976001. The reversal of 53975978 is 87957935.

It is a happy number.

It is a Curzon 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, 7808 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (5792040).

Almost surely, 2^53975978 is an apocalyptic number.

53975978 is a deficient number, since it is larger than the sum of its proper divisors (38696662).

53975978 is a wasteful number, since it uses less digits than its factorization.

53975978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941.

The product of its digits is 2381400, while the sum is 53.

The square root of 53975978 is about 7346.8345564604. The cubic root of 53975978 is about 377.9202588342.

The spelling of 53975978 in words is "fifty-three million, nine hundred seventy-five thousand, nine hundred seventy-eight".