51013696 has 28 divisors (see below), whose sum is σ = 101895148. Its totient is φ = 25339392.

The previous prime is 51013687. The next prime is 51013723. The reversal of 51013696 is 69631015.

It can be written as a sum of positive squares in 2 ways, for example, as 35521600 + 15492096 = 5960^2 + 3936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7510 + ... + 12586.

Almost surely, 2^51013696 is an apocalyptic number.

It is an amenable number.

51013696 is a deficient number, since it is larger than the sum of its proper divisors (50881452).

51013696 is a wasteful number, since it uses less digits than its factorization.

51013696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 51013696 is about 7142.3872759743. The cubic root of 51013696 is about 370.8761704614.

The spelling of 51013696 in words is "fifty-one million, thirteen thousand, six hundred ninety-six".