51756536 has 16 divisors (see below), whose sum is σ = 104508600. Its totient is φ = 23887584.

The previous prime is 51756533. The next prime is 51756553. The reversal of 51756536 is 63565715.

It is a self number, because there is not a number n which added to its sum of digits gives 51756536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51756533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248726 + ... + 248933.

Almost surely, 2^51756536 is an apocalyptic number.

It is an amenable number.

51756536 is an abundant number, since it is smaller than the sum of its proper divisors (52752064).

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

51756536 is a wasteful number, since it uses less digits than its factorization.

51756536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497678 (or 497674 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 51756536 is about 7194.2015540295. The cubic root of 51756536 is about 372.6676836146.

It can be divided in two parts, 5175 and 6536, that added together give a palindrome (11711).

The spelling of 51756536 in words is "fifty-one million, seven hundred fifty-six thousand, five hundred thirty-six".