251030053922 has 18 divisors (see below), whose sum is σ = 385997778387. Its totient is φ = 122439513600.

The previous prime is 251030053889. The next prime is 251030053927. The reversal of 251030053922 is 229350030152.

It can be written as a sum of positive squares in 5 ways, for example, as 37446507121 + 213583546801 = 193511^2 + 462151^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=354281.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251030053927) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 29046722 + ... + 29055362.

Almost surely, 2^251030053922 is an apocalyptic number.

251030053922 is a deficient number, since it is larger than the sum of its proper divisors (134967724465).

251030053922 is an frugal number, since it uses more digits than its factorization.

251030053922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17366 (or 8684 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Multiplying 251030053922 by its sum of digits (32), we get a square (8032961725504 = 2834248²).

The spelling of 251030053922 in words is "two hundred fifty-one billion, thirty million, fifty-three thousand, nine hundred twenty-two".