51538002 has 16 divisors (see below), whose sum is σ = 103148640. Its totient is φ = 17167232.

The previous prime is 51538001. The next prime is 51538021. The reversal of 51538002 is 20083515.

It is not an unprimeable number, because it can be changed into a prime (51538001) 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, 11749 + ... + 15527.

It is an arithmetic number, because the mean of its divisors is an integer number (6446790).

Almost surely, 2^51538002 is an apocalyptic number.

51538002 is an abundant number, since it is smaller than the sum of its proper divisors (51610638).

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

51538002 is a wasteful number, since it uses less digits than its factorization.

51538002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51538002 is about 7178.9972837437. The cubic root of 51538002 is about 372.1424330285.

The spelling of 51538002 in words is "fifty-one million, five hundred thirty-eight thousand, two".