51988862 has 8 divisors (see below), whose sum is σ = 79642656. Its totient is φ = 25441312.

The previous prime is 51988837. The next prime is 51988879. The reversal of 51988862 is 26888915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276443 + ... + 276630.

It is an arithmetic number, because the mean of its divisors is an integer number (9955332).

Almost surely, 2^51988862 is an apocalyptic number.

51988862 is a deficient number, since it is larger than the sum of its proper divisors (27653794).

51988862 is a wasteful number, since it uses less digits than its factorization.

51988862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553122.

The product of its digits is 276480, while the sum is 47.

The square root of 51988862 is about 7210.3302282212. The cubic root of 51988862 is about 373.2244646062.

The spelling of 51988862 in words is "fifty-one million, nine hundred eighty-eight thousand, eight hundred sixty-two".