51984072 has 64 divisors (see below), whose sum is σ = 165033600. Its totient is φ = 14852160.

The previous prime is 51984061. The next prime is 51984083. The reversal of 51984072 is 27048915.

It is an interprime number because it is at equal distance from previous prime (51984061) and next prime (51984083).

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

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, 15679 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (2578650).

Almost surely, 2^51984072 is an apocalyptic number.

It is an amenable number.

51984072 is an abundant number, since it is smaller than the sum of its proper divisors (113049528).

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

51984072 is a wasteful number, since it uses less digits than its factorization.

51984072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34403 (or 34393 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51984072 is about 7209.9980582522. The cubic root of 51984072 is about 373.2130018940.

The spelling of 51984072 in words is "fifty-one million, nine hundred eighty-four thousand, seventy-two".