51097396 has 24 divisors (see below), whose sum is σ = 104283200. Its totient is φ = 21898296.

The previous prime is 51097381. The next prime is 51097471. The reversal of 51097396 is 69379015.

It is a super-2 number, since 2×51097396² = 5221887755961632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17250 + ... + 19993.

Almost surely, 2^51097396 is an apocalyptic number.

It is an amenable number.

51097396 is an abundant number, since it is smaller than the sum of its proper divisors (53185804).

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

51097396 is a wasteful number, since it uses less digits than its factorization.

51097396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37268 (or 37252 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 51097396 is about 7148.2442599564. The cubic root of 51097396 is about 371.0788962386.

The spelling of 51097396 in words is "fifty-one million, ninety-seven thousand, three hundred ninety-six".