51978796 has 12 divisors (see below), whose sum is σ = 92679552. Its totient is φ = 25498928.

The previous prime is 51978793. The next prime is 51978803. The reversal of 51978796 is 69787915.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51978791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122380 + ... + 122803.

It is an arithmetic number, because the mean of its divisors is an integer number (7723296).

Almost surely, 2^51978796 is an apocalyptic number.

It is an amenable number.

51978796 is a deficient number, since it is larger than the sum of its proper divisors (40700756).

51978796 is a wasteful number, since it uses less digits than its factorization.

51978796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245240 (or 245238 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 51978796 is about 7209.6321681484. The cubic root of 51978796 is about 373.2003753442.

The spelling of 51978796 in words is "fifty-one million, nine hundred seventy-eight thousand, seven hundred ninety-six".