19057221925 has 24 divisors (see below), whose sum is σ = 27516381696. Its totient is φ = 12821240640.

The previous prime is 19057221917. The next prime is 19057221949. The reversal of 19057221925 is 52912275091.

It is not a de Polignac number, because 19057221925 - 2³ = 19057221917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1018069 + ... + 1036618.

It is an arithmetic number, because the mean of its divisors is an integer number (1146515904).

Almost surely, 2^19057221925 is an apocalyptic number.

It is an amenable number.

19057221925 is a deficient number, since it is larger than the sum of its proper divisors (8459159771).

19057221925 is a wasteful number, since it uses less digits than its factorization.

19057221925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054757 (or 2054752 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 19057221925 in words is "nineteen billion, fifty-seven million, two hundred twenty-one thousand, nine hundred twenty-five".