19442052825 has 48 divisors (see below), whose sum is σ = 34796522880. Its totient is φ = 9521786880.

The previous prime is 19442052811. The next prime is 19442052829. The reversal of 19442052825 is 52825024491.

It is not a de Polignac number, because 19442052825 - 2⁵ = 19442052793 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19442052829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136516 + ... + 239834.

It is an arithmetic number, because the mean of its divisors is an integer number (724927560).

Almost surely, 2^19442052825 is an apocalyptic number.

19442052825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19442052825 is a deficient number, since it is larger than the sum of its proper divisors (15354470055).

19442052825 is a wasteful number, since it uses less digits than its factorization.

19442052825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103538 (or 103533 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 19442052825 in words is "nineteen billion, four hundred forty-two million, fifty-two thousand, eight hundred twenty-five".