51244960 has 96 divisors (see below), whose sum is σ = 132596352. Its totient is φ = 18600960.

The previous prime is 51244951. The next prime is 51245027. The reversal of 51244960 is 6944215.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147507 + ... + 147853.

It is an arithmetic number, because the mean of its divisors is an integer number (1381212).

Almost surely, 2^51244960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51244960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66298176).

51244960 is an abundant number, since it is smaller than the sum of its proper divisors (81351392).

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

51244960 is a wasteful number, since it uses less digits than its factorization.

51244960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 51244960 is about 7158.5585141144. The cubic root of 51244960 is about 371.4357654284.

The spelling of 51244960 in words is "fifty-one million, two hundred forty-four thousand, nine hundred sixty".