51207944 has 16 divisors (see below), whose sum is σ = 101663100. Its totient is φ = 24097792.

The previous prime is 51207931. The next prime is 51207971. The reversal of 51207944 is 44970215.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49140100 + 2067844 = 7010^2 + 1438^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51207944.

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, 188129 + ... + 188400.

Almost surely, 2^51207944 is an apocalyptic number.

It is an amenable number.

51207944 is a deficient number, since it is larger than the sum of its proper divisors (50455156).

51207944 is a wasteful number, since it uses less digits than its factorization.

51207944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376552 (or 376548 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 51207944 is about 7155.9726103445. The cubic root of 51207944 is about 371.3463102697.

The spelling of 51207944 in words is "fifty-one million, two hundred seven thousand, nine hundred forty-four".