51505023150 has 96 divisors (see below), whose sum is σ = 162199975680. Its totient is φ = 11772574560.

The previous prime is 51505023139. The next prime is 51505023151. The reversal of 51505023150 is 5132050515.

51505023150 is a `hidden beast` number, since 5 + 1 + 5 + 0 + 502 + 3 + 150 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51505023151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2715684 + ... + 2734583.

It is an arithmetic number, because the mean of its divisors is an integer number (1689583080).

Almost surely, 2^51505023150 is an apocalyptic number.

51505023150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51505023150 is an abundant number, since it is smaller than the sum of its proper divisors (110694952530).

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

51505023150 is a wasteful number, since it uses less digits than its factorization.

51505023150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450295 (or 5450284 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

Adding to 51505023150 its reverse (5132050515), we get a palindrome (56637073665).

The spelling of 51505023150 in words is "fifty-one billion, five hundred five million, twenty-three thousand, one hundred fifty".