51238996 has 12 divisors (see below), whose sum is σ = 90931680. Its totient is φ = 25258520.

The previous prime is 51238973. The next prime is 51239021. The reversal of 51238996 is 69983215.

It is a happy number.

It is a super-2 number, since 2×51238996² = 5250869422176032, 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 3 ways as a sum of consecutive naturals, for example, 89926 + ... + 90493.

It is an arithmetic number, because the mean of its divisors is an integer number (7577640).

Almost surely, 2^51238996 is an apocalyptic number.

It is an amenable number.

51238996 is a deficient number, since it is larger than the sum of its proper divisors (39692684).

51238996 is a wasteful number, since it uses less digits than its factorization.

51238996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180494 (or 180492 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 51238996 is about 7158.1419376819. The cubic root of 51238996 is about 371.4213553684.

The spelling of 51238996 in words is "fifty-one million, two hundred thirty-eight thousand, nine hundred ninety-six".