51290409528 has 96 divisors (see below), whose sum is σ = 142552191600. Its totient is φ = 16653371904.

The previous prime is 51290409497. The next prime is 51290409539. The reversal of 51290409528 is 82590409215.

It is a happy number.

51290409528 is a `hidden beast` number, since 512 + 9 + 0 + 40 + 95 + 2 + 8 = 666.

It is a super-2 number, since 2×51290409528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482076 + ... + 578772.

Almost surely, 2^51290409528 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 51290409528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71276095800).

51290409528 is an abundant number, since it is smaller than the sum of its proper divisors (91261782072).

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

51290409528 is a wasteful number, since it uses less digits than its factorization.

51290409528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96901 (or 96894 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 51290409528 in words is "fifty-one billion, two hundred ninety million, four hundred nine thousand, five hundred twenty-eight".