51825001400 has 24 divisors (see below), whose sum is σ = 120493128720. Its totient is φ = 20730000480.

The previous prime is 51825001363. The next prime is 51825001421. The reversal of 51825001400 is 410052815.

It is a super-2 number, since 2×51825001400² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51825001400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129562304 + ... + 129562703.

It is an arithmetic number, because the mean of its divisors is an integer number (5020547030).

Almost surely, 2^51825001400 is an apocalyptic number.

51825001400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51825001400 is an abundant number, since it is smaller than the sum of its proper divisors (68668127320).

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

51825001400 is a wasteful number, since it uses less digits than its factorization.

51825001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259125023 (or 259125014 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 51825001400 in words is "fifty-one billion, eight hundred twenty-five million, one thousand, four hundred".