51523560000 has 560 divisors, whose sum is σ = 206531138880. Its totient is φ = 12487680000.

The previous prime is 51523559987. The next prime is 51523560019. The reversal of 51523560000 is 6532515.

51523560000 is a `hidden beast` number, since 5 + 1 + 52 + 3 + 5 + 600 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 79 ways as a sum of consecutive naturals, for example, 11877832 + ... + 11882168.

Almost surely, 2^51523560000 is an apocalyptic number.

51523560000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51523560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103265569440).

51523560000 is an abundant number, since it is smaller than the sum of its proper divisors (155007578880).

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

51523560000 is a wasteful number, since it uses less digits than its factorization.

51523560000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 51523560000 in words is "fifty-one billion, five hundred twenty-three million, five hundred sixty thousand".