51838764 has 24 divisors (see below), whose sum is σ = 127323840. Its totient is φ = 16370064.

The previous prime is 51838751. The next prime is 51838769. The reversal of 51838764 is 46783815.

It is not an unprimeable number, because it can be changed into a prime (51838769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113454 + ... + 113909.

It is an arithmetic number, because the mean of its divisors is an integer number (5305160).

Almost surely, 2^51838764 is an apocalyptic number.

It is an amenable number.

51838764 is an abundant number, since it is smaller than the sum of its proper divisors (75485076).

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

51838764 is a wasteful number, since it uses less digits than its factorization.

51838764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227389 (or 227387 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 51838764 is about 7199.9141661550. The cubic root of 51838764 is about 372.8649373118.

The spelling of 51838764 in words is "fifty-one million, eight hundred thirty-eight thousand, seven hundred sixty-four".