25550313199 has 2 divisors, whose sum is σ = 25550313200. Its totient is φ = 25550313198.

The previous prime is 25550313133. The next prime is 25550313221. The reversal of 25550313199 is 99131305552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25550313199 - 2²¹ = 25548216047 is a prime.

It is a super-2 number, since 2×25550313199² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25550313109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775156599 + 12775156600.

It is an arithmetic number, because the mean of its divisors is an integer number (12775156600).

Almost surely, 2^25550313199 is an apocalyptic number.

25550313199 is a deficient number, since it is larger than the sum of its proper divisors (1).

25550313199 is an equidigital number, since it uses as much as digits as its factorization.

25550313199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182250, while the sum is 43.

The spelling of 25550313199 in words is "twenty-five billion, five hundred fifty million, three hundred thirteen thousand, one hundred ninety-nine".