51546560 has 56 divisors (see below), whose sum is σ = 132197856. Its totient is φ = 19031040.

The previous prime is 51546529. The next prime is 51546613. The reversal of 51546560 is 6564515.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 2036 + ... + 10355.

It is an arithmetic number, because the mean of its divisors is an integer number (2360676).

Almost surely, 2^51546560 is an apocalyptic number.

It is an amenable number.

51546560 is an abundant number, since it is smaller than the sum of its proper divisors (80651296).

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

51546560 is a wasteful number, since it uses less digits than its factorization.

51546560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12421 (or 12411 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 51546560 is about 7179.5933032450. The cubic root of 51546560 is about 372.1630302483.

The spelling of 51546560 in words is "fifty-one million, five hundred forty-six thousand, five hundred sixty".