51031408 has 10 divisors (see below), whose sum is σ = 98873384. Its totient is φ = 25515696.

The previous prime is 51031391. The next prime is 51031423. The reversal of 51031408 is 80413015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594716 + ... + 1594747.

Almost surely, 2^51031408 is an apocalyptic number.

It is an amenable number.

51031408 is a deficient number, since it is larger than the sum of its proper divisors (47841976).

51031408 is a wasteful number, since it uses less digits than its factorization.

51031408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189471 (or 3189465 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51031408 is about 7143.6270899313. The cubic root of 51031408 is about 370.9190883386.

The spelling of 51031408 in words is "fifty-one million, thirty-one thousand, four hundred eight".