51337140 has 24 divisors (see below), whose sum is σ = 143744160. Its totient is φ = 13689888.

The previous prime is 51337133. The next prime is 51337159. The reversal of 51337140 is 4173315.

It is a self number, because there is not a number n which added to its sum of digits gives 51337140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427750 + ... + 427869.

It is an arithmetic number, because the mean of its divisors is an integer number (5989340).

Almost surely, 2^51337140 is an apocalyptic number.

It is an amenable number.

51337140 is an abundant number, since it is smaller than the sum of its proper divisors (92407020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51337140 is a wasteful number, since it uses less digits than its factorization.

51337140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855631 (or 855629 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 51337140 is about 7164.9940683855. The cubic root of 51337140 is about 371.6583462738.

The spelling of 51337140 in words is "fifty-one million, three hundred thirty-seven thousand, one hundred forty".