51915276 has 96 divisors (see below), whose sum is σ = 157498880. Its totient is φ = 14478912.

The previous prime is 51915247. The next prime is 51915287. The reversal of 51915276 is 67251915.

51915276 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51915276.

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, 31710 + ... + 33306.

Almost surely, 2^51915276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51915276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78749440).

51915276 is an abundant number, since it is smaller than the sum of its proper divisors (105583604).

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

51915276 is a wasteful number, since it uses less digits than its factorization.

51915276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1652 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 51915276 is about 7205.2256036851. The cubic root of 51915276 is about 373.0482918497.

The spelling of 51915276 in words is "fifty-one million, nine hundred fifteen thousand, two hundred seventy-six".