51239150 has 12 divisors (see below), whose sum is σ = 95304912. Its totient is φ = 20495640.

The previous prime is 51239141. The next prime is 51239189. The reversal of 51239150 is 5193215.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512342 + ... + 512441.

It is an arithmetic number, because the mean of its divisors is an integer number (7942076).

Almost surely, 2^51239150 is an apocalyptic number.

51239150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51239150 is a deficient number, since it is larger than the sum of its proper divisors (44065762).

51239150 is a wasteful number, since it uses less digits than its factorization.

51239150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024795 (or 1024790 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 51239150 is about 7158.1526946552. The cubic root of 51239150 is about 371.4217274732.

The spelling of 51239150 in words is "fifty-one million, two hundred thirty-nine thousand, one hundred fifty".