51192251430 has 16 divisors (see below), whose sum is σ = 122861403504. Its totient is φ = 13651267040.

The previous prime is 51192251401. The next prime is 51192251441. The reversal of 51192251430 is 3415229115.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51192251391 and 51192251400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853204161 + ... + 853204220.

It is an arithmetic number, because the mean of its divisors is an integer number (7678837719).

Almost surely, 2^51192251430 is an apocalyptic number.

51192251430 is an abundant number, since it is smaller than the sum of its proper divisors (71669152074).

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

51192251430 is a wasteful number, since it uses less digits than its factorization.

51192251430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706408391.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 51192251430 in words is "fifty-one billion, one hundred ninety-two million, two hundred fifty-one thousand, four hundred thirty".