51375064 has 64 divisors (see below), whose sum is σ = 107785440. Its totient is φ = 22809600.

The previous prime is 51375053. The next prime is 51375083. The reversal of 51375064 is 46057315.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 508614 + ... + 508714.

Almost surely, 2^51375064 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 51375064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53892720).

51375064 is an abundant number, since it is smaller than the sum of its proper divisors (56410376).

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

51375064 is a wasteful number, since it uses less digits than its factorization.

51375064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 51375064 is about 7167.6400579270. The cubic root of 51375064 is about 371.7498414488.

It can be divided in two parts, 5137 and 5064, that added together give a palindrome (10201).

The spelling of 51375064 in words is "fifty-one million, three hundred seventy-five thousand, sixty-four".