51737013 has 6 divisors (see below), whose sum is σ = 74731254. Its totient is φ = 34491336.

The previous prime is 51737011. The next prime is 51737029. The reversal of 51737013 is 31073715.

It can be written as a sum of positive squares in only one way, i.e., 32182929 + 19554084 = 5673^2 + 4422^2 .

It is not a de Polignac number, because 51737013 - 2¹ = 51737011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51737011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2874270 + ... + 2874287.

It is an arithmetic number, because the mean of its divisors is an integer number (12455209).

Almost surely, 2^51737013 is an apocalyptic number.

It is an amenable number.

51737013 is a deficient number, since it is larger than the sum of its proper divisors (22994241).

51737013 is a wasteful number, since it uses less digits than its factorization.

51737013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748563 (or 5748560 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 51737013 is about 7192.8445694315. The cubic root of 51737013 is about 372.6208199284.

The spelling of 51737013 in words is "fifty-one million, seven hundred thirty-seven thousand, thirteen".