51566592 has 192 divisors, whose sum is σ = 172972800. Its totient is φ = 13271040.

The previous prime is 51566587. The next prime is 51566623. The reversal of 51566592 is 29566515.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×51566592² = 5318226820988928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51566592.

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, 473034 + ... + 473142.

It is an arithmetic number, because the mean of its divisors is an integer number (900900).

Almost surely, 2^51566592 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 51566592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86486400).

51566592 is an abundant number, since it is smaller than the sum of its proper divisors (121406208).

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

51566592 is a wasteful number, since it uses less digits than its factorization.

51566592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 132 counting only the distinct ones).

The product of its digits is 81000, while the sum is 39.

The square root of 51566592 is about 7180.9882328270. The cubic root of 51566592 is about 372.2112339454.

The spelling of 51566592 in words is "fifty-one million, five hundred sixty-six thousand, five hundred ninety-two".