51870968 has 8 divisors (see below), whose sum is σ = 97258080. Its totient is φ = 25935480.

The previous prime is 51870947. The next prime is 51870977. The reversal of 51870968 is 86907815.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3241928 + ... + 3241943.

It is an arithmetic number, because the mean of its divisors is an integer number (12157260).

Almost surely, 2^51870968 is an apocalyptic number.

It is an amenable number.

51870968 is a deficient number, since it is larger than the sum of its proper divisors (45387112).

51870968 is a wasteful number, since it uses less digits than its factorization.

51870968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483877 (or 6483873 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 51870968 is about 7202.1502344786. The cubic root of 51870968 is about 372.9421334473.

The spelling of 51870968 in words is "fifty-one million, eight hundred seventy thousand, nine hundred sixty-eight".