51075264 has 56 divisors (see below), whose sum is σ = 139811760. Its totient is φ = 16436224.

The previous prime is 51075257. The next prime is 51075301. The reversal of 51075264 is 46257015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982 + ... + 10154.

Almost surely, 2^51075264 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 51075264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69905880).

51075264 is an abundant number, since it is smaller than the sum of its proper divisors (88736496).

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

51075264 is a wasteful number, since it uses less digits than its factorization.

51075264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9217 (or 9207 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 51075264 is about 7146.6960198402. The cubic root of 51075264 is about 371.0253129199.

The spelling of 51075264 in words is "fifty-one million, seventy-five thousand, two hundred sixty-four".