51872760 has 96 divisors (see below), whose sum is σ = 170586000. Its totient is φ = 13668864.

The previous prime is 51872731. The next prime is 51872767. The reversal of 51872760 is 6727815.

51872760 is a `hidden beast` number, since 518 + 72 + 76 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51872767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31231 + ... + 32849.

Almost surely, 2^51872760 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 51872760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85293000).

51872760 is an abundant number, since it is smaller than the sum of its proper divisors (118713240).

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

51872760 is a wasteful number, since it uses less digits than its factorization.

51872760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 51872760 is about 7202.2746406951. The cubic root of 51872760 is about 372.9464281079.

The spelling of 51872760 in words is "fifty-one million, eight hundred seventy-two thousand, seven hundred sixty".