51224880 has 80 divisors (see below), whose sum is σ = 181488384. Its totient is φ = 11708160.

The previous prime is 51224857. The next prime is 51224881. The reversal of 51224880 is 8842215.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (51224881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13566 + ... + 16925.

Almost surely, 2^51224880 is an apocalyptic number.

It is an amenable number.

51224880 is an abundant number, since it is smaller than the sum of its proper divisors (130263504).

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

51224880 is a wasteful number, since it uses less digits than its factorization.

51224880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30514 (or 30508 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 51224880 is about 7157.1558596973. The cubic root of 51224880 is about 371.3872442044.

The spelling of 51224880 in words is "fifty-one million, two hundred twenty-four thousand, eight hundred eighty".