51879500 has 96 divisors (see below), whose sum is σ = 123002880. Its totient is φ = 19051200.

The previous prime is 51879479. The next prime is 51879511. The reversal of 51879500 is 597815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408437 + ... + 408563.

It is an arithmetic number, because the mean of its divisors is an integer number (1281280).

Almost surely, 2^51879500 is an apocalyptic number.

51879500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51879500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61501440).

51879500 is an abundant number, since it is smaller than the sum of its proper divisors (71123380).

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

51879500 is a wasteful number, since it uses less digits than its factorization.

51879500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 51879500 is about 7202.7425332300. The cubic root of 51879500 is about 372.9625801311.

The spelling of 51879500 in words is "fifty-one million, eight hundred seventy-nine thousand, five hundred".