51375888 has 60 divisors (see below), whose sum is σ = 146859648. Its totient is φ = 16758720.

The previous prime is 51375851. The next prime is 51375913. The reversal of 51375888 is 88857315.

It is a happy number.

51375888 is a `hidden beast` number, since 513 + 7 + 58 + 88 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2973 + ... + 10563.

Almost surely, 2^51375888 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 51375888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73429824).

51375888 is an abundant number, since it is smaller than the sum of its proper divisors (95483760).

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

51375888 is a wasteful number, since it uses less digits than its factorization.

51375888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652 (or 7643 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 51375888 is about 7167.6975382615. The cubic root of 51375888 is about 371.7518289255.

It can be divided in two parts, 5137 and 5888, that added together give a square (11025 = 105²).

The spelling of 51375888 in words is "fifty-one million, three hundred seventy-five thousand, eight hundred eighty-eight".