51768068 has 48 divisors (see below), whose sum is σ = 102332160. Its totient is φ = 22713600.

The previous prime is 51768061. The next prime is 51768083. The reversal of 51768068 is 86086715.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51768061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184088 + ... + 184368.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^51768068 is an apocalyptic number.

It is an amenable number.

51768068 is a deficient number, since it is larger than the sum of its proper divisors (50564092).

51768068 is a wasteful number, since it uses less digits than its factorization.

51768068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 51768068 is about 7195.0029881856. The cubic root of 51768068 is about 372.6953598910.

The spelling of 51768068 in words is "fifty-one million, seven hundred sixty-eight thousand, sixty-eight".