20104525291 has 2 divisors, whose sum is σ = 20104525292. Its totient is φ = 20104525290.

The previous prime is 20104525283. The next prime is 20104525307. The reversal of 20104525291 is 19252540102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20104525291 - 2³ = 20104525283 is a prime.

It is not a weakly prime, because it can be changed into another prime (20104525691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052262645 + 10052262646.

It is an arithmetic number, because the mean of its divisors is an integer number (10052262646).

Almost surely, 2^20104525291 is an apocalyptic number.

20104525291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104525291 is an equidigital number, since it uses as much as digits as its factorization.

20104525291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 20104525291 in words is "twenty billion, one hundred four million, five hundred twenty-five thousand, two hundred ninety-one".