51636576 has 48 divisors (see below), whose sum is σ = 139926528. Its totient is φ = 16656000.

The previous prime is 51636551. The next prime is 51636581. The reversal of 51636576 is 67563615.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5700 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (2915136).

Almost surely, 2^51636576 is an apocalyptic number.

It is an amenable number.

51636576 is an abundant number, since it is smaller than the sum of its proper divisors (88289952).

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

51636576 is a wasteful number, since it uses less digits than its factorization.

51636576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17395 (or 17387 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The square root of 51636576 is about 7185.8594475539. The cubic root of 51636576 is about 372.3795409490.

The spelling of 51636576 in words is "fifty-one million, six hundred thirty-six thousand, five hundred seventy-six".