51258880 has 40 divisors (see below), whose sum is σ = 122907312. Its totient is φ = 20502528.

The previous prime is 51258871. The next prime is 51258899. The reversal of 51258880 is 8885215.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7452 + ... + 12571.

Almost surely, 2^51258880 is an apocalyptic number.

It is an amenable number.

51258880 is an abundant number, since it is smaller than the sum of its proper divisors (71648432).

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

51258880 is an equidigital number, since it uses as much as digits as its factorization.

51258880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046 (or 20030 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 51258880 is about 7159.5307108776. The cubic root of 51258880 is about 371.4693942170.

The spelling of 51258880 in words is "fifty-one million, two hundred fifty-eight thousand, eight hundred eighty".