51299625024 has 196 divisors, whose sum is σ = 156757041324. Its totient is φ = 16637156352.

The previous prime is 51299625019. The next prime is 51299625029. The reversal of 51299625024 is 42052699215.

51299625024 is a `hidden beast` number, since 5 + 12 + 9 + 9 + 625 + 0 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (51299625019) and next prime (51299625029).

It can be written as a sum of positive squares in 2 ways, for example, as 44808422400 + 6491202624 = 211680^2 + 80568^2 .

It is not an unprimeable number, because it can be changed into a prime (51299625029) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1711414 + ... + 1741130.

Almost surely, 2^51299625024 is an apocalyptic number.

51299625024 is a gapful number since it is divisible by the number (54) 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 51299625024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78378520662).

51299625024 is an abundant number, since it is smaller than the sum of its proper divisors (105457416300).

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

51299625024 is an equidigital number, since it uses as much as digits as its factorization.

51299625024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29784 (or 29759 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 51299625024 in words is "fifty-one billion, two hundred ninety-nine million, six hundred twenty-five thousand, twenty-four".