51086672 has 60 divisors (see below), whose sum is σ = 122536800. Its totient is φ = 20202624.

The previous prime is 51086669. The next prime is 51086681. The reversal of 51086672 is 27668015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17579 + ... + 20277.

It is an arithmetic number, because the mean of its divisors is an integer number (2042280).

Almost surely, 2^51086672 is an apocalyptic number.

51086672 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51086672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61268400).

51086672 is an abundant number, since it is smaller than the sum of its proper divisors (71450128).

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

51086672 is a wasteful number, since it uses less digits than its factorization.

51086672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 51086672 is about 7147.4941063285. The cubic root of 51086672 is about 371.0529345209.

The spelling of 51086672 in words is "fifty-one million, eighty-six thousand, six hundred seventy-two".