51266760 has 64 divisors (see below), whose sum is σ = 154802880. Its totient is φ = 13582080.

The previous prime is 51266749. The next prime is 51266773. The reversal of 51266760 is 6766215.

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, 18250 + ... + 20870.

It is an arithmetic number, because the mean of its divisors is an integer number (2418795).

Almost surely, 2^51266760 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 51266760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77401440).

51266760 is an abundant number, since it is smaller than the sum of its proper divisors (103536120).

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

51266760 is a wasteful number, since it uses less digits than its factorization.

51266760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 51266760 is about 7160.0810051284. The cubic root of 51266760 is about 371.4884285049.

The spelling of 51266760 in words is "fifty-one million, two hundred sixty-six thousand, seven hundred sixty".