51875582408 has 64 divisors (see below), whose sum is σ = 106429868160. Its totient is φ = 23559123456.

The previous prime is 51875582329. The next prime is 51875582419. The reversal of 51875582408 is 80428557815.

It is a self number, because there is not a number n which added to its sum of digits gives 51875582408.

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, 7194341 + ... + 7201547.

It is an arithmetic number, because the mean of its divisors is an integer number (1662966690).

Almost surely, 2^51875582408 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 51875582408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53214934080).

51875582408 is an abundant number, since it is smaller than the sum of its proper divisors (54554285752).

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

51875582408 is a wasteful number, since it uses less digits than its factorization.

51875582408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326 (or 8322 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 53.

The spelling of 51875582408 in words is "fifty-one billion, eight hundred seventy-five million, five hundred eighty-two thousand, four hundred eight".