51719160 has 64 divisors (see below), whose sum is σ = 160174080. Its totient is φ = 13345920.

The previous prime is 51719137. The next prime is 51719177. The reversal of 51719160 is 6191715.

It is a super-2 number, since 2×51719160² = 5349743022211200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3232 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (2502720).

Almost surely, 2^51719160 is an apocalyptic number.

It is an amenable number.

51719160 is an abundant number, since it is smaller than the sum of its proper divisors (108454920).

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

51719160 is a wasteful number, since it uses less digits than its factorization.

51719160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13948 (or 13944 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 51719160 is about 7191.6034373427. The cubic root of 51719160 is about 372.5779546472.

The spelling of 51719160 in words is "fifty-one million, seven hundred nineteen thousand, one hundred sixty".