51976512 has 112 divisors (see below), whose sum is σ = 174670720. Its totient is φ = 14846976.

The previous prime is 51976493. The next prime is 51976537. The reversal of 51976512 is 21567915.

51976512 is a `hidden beast` number, since 51 + 97 + 6 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×51976512² = 5403115599372288, which contains 22 as substring.

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

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, 9948 + ... + 14244.

It is an arithmetic number, because the mean of its divisors is an integer number (1559560).

Almost surely, 2^51976512 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 51976512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87335360).

51976512 is an abundant number, since it is smaller than the sum of its proper divisors (122694208).

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

51976512 is a wasteful number, since it uses less digits than its factorization.

51976512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4309 counting only the distinct ones).

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

The square root of 51976512 is about 7209.4737672038. The cubic root of 51976512 is about 373.1949089989.

The spelling of 51976512 in words is "fifty-one million, nine hundred seventy-six thousand, five hundred twelve".