51250880 has 28 divisors (see below), whose sum is σ = 122041920. Its totient is φ = 20500224.

The previous prime is 51250879. The next prime is 51250889. The reversal of 51250880 is 8805215.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51250889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79760 + ... + 80399.

It is an arithmetic number, because the mean of its divisors is an integer number (4358640).

Almost surely, 2^51250880 is an apocalyptic number.

It is an amenable number.

51250880 is an abundant number, since it is smaller than the sum of its proper divisors (70791040).

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

51250880 is a wasteful number, since it uses less digits than its factorization.

51250880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160176 (or 160166 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 51250880 is about 7158.9719932404. The cubic root of 51250880 is about 371.4500680711.

The spelling of 51250880 in words is "fifty-one million, two hundred fifty thousand, eight hundred eighty".