25159155019 has 2 divisors, whose sum is σ = 25159155020. Its totient is φ = 25159155018.

The previous prime is 25159155017. The next prime is 25159155113. The reversal of 25159155019 is 91055195152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25159155019 - 2¹ = 25159155017 is a prime.

It is a super-2 number, since 2×25159155019² (a number of 22 digits) contains 22 as substring.

Together with 25159155017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25159155017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12579577509 + 12579577510.

It is an arithmetic number, because the mean of its divisors is an integer number (12579577510).

Almost surely, 2^25159155019 is an apocalyptic number.

25159155019 is a deficient number, since it is larger than the sum of its proper divisors (1).

25159155019 is an equidigital number, since it uses as much as digits as its factorization.

25159155019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101250, while the sum is 43.

The spelling of 25159155019 in words is "twenty-five billion, one hundred fifty-nine million, one hundred fifty-five thousand, nineteen".