51785976 has 32 divisors (see below), whose sum is σ = 141235200. Its totient is φ = 15692640.

The previous prime is 51785971. The next prime is 51785989. The reversal of 51785976 is 67958715.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51785971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97816 + ... + 98343.

It is an arithmetic number, because the mean of its divisors is an integer number (4413600).

Almost surely, 2^51785976 is an apocalyptic number.

It is an amenable number.

51785976 is an abundant number, since it is smaller than the sum of its proper divisors (89449224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51785976 is a wasteful number, since it uses less digits than its factorization.

51785976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196179 (or 196175 counting only the distinct ones).

The product of its digits is 529200, while the sum is 48.

The square root of 51785976 is about 7196.2473553929. The cubic root of 51785976 is about 372.7383301318.

The spelling of 51785976 in words is "fifty-one million, seven hundred eighty-five thousand, nine hundred seventy-six".