19252205081 has 4 divisors (see below), whose sum is σ = 19252608000. Its totient is φ = 19251802164.

The previous prime is 19252205053. The next prime is 19252205083. The reversal of 19252205081 is 18050225291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19252205081 - 2⁶ = 19252205017 is a prime.

It is a super-2 number, since 2×19252205081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19252205083) 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 3 ways as a sum of consecutive naturals, for example, 118361 + ... + 229158.

It is an arithmetic number, because the mean of its divisors is an integer number (4813152000).

Almost surely, 2^19252205081 is an apocalyptic number.

It is an amenable number.

19252205081 is a deficient number, since it is larger than the sum of its proper divisors (402919).

19252205081 is an equidigital number, since it uses as much as digits as its factorization.

19252205081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402918.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 19252205081 in words is "nineteen billion, two hundred fifty-two million, two hundred five thousand, eighty-one".