51595488 has 192 divisors, whose sum is σ = 181440000. Its totient is φ = 13934592.

The previous prime is 51595483. The next prime is 51595499. The reversal of 51595488 is 88459515.

It is a happy number.

51595488 is a `hidden beast` number, since 51 + 59 + 548 + 8 = 666.

It is a Cunningham number, because it is equal to 7183²-1.

Its product of digits (288000) is a multiple of the sum of its prime divisors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51595483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114688 + ... + 115136.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 2^51595488 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 51595488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

51595488 is an abundant number, since it is smaller than the sum of its proper divisors (129844512).

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

51595488 is a wasteful number, since it uses less digits than its factorization.

51595488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 480 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 51595488 is about 7182.9999303912. Note that the first 4 decimals coincide. The cubic root of 51595488 is about 372.2807454065.

The spelling of 51595488 in words is "fifty-one million, five hundred ninety-five thousand, four hundred eighty-eight".