51397376 has 18 divisors (see below), whose sum is σ = 102594492. Its totient is φ = 25698560.

The previous prime is 51397363. The next prime is 51397391. The reversal of 51397376 is 67379315.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100130 + ... + 100641.

It is an arithmetic number, because the mean of its divisors is an integer number (5699694).

Almost surely, 2^51397376 is an apocalyptic number.

It is an amenable number.

51397376 is a deficient number, since it is larger than the sum of its proper divisors (51197116).

51397376 is an equidigital number, since it uses as much as digits as its factorization.

51397376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200787 (or 200773 counting only the distinct ones).

The product of its digits is 119070, while the sum is 41.

The square root of 51397376 is about 7169.1963287387. The cubic root of 51397376 is about 371.8036501863.

The spelling of 51397376 in words is "fifty-one million, three hundred ninety-seven thousand, three hundred seventy-six".