253957939199 has 4 divisors (see below), whose sum is σ = 256811399280. Its totient is φ = 251104479120.

The previous prime is 253957939189. The next prime is 253957939211. The reversal of 253957939199 is 991939759352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253957939199 - 2⁸ = 253957938943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253957939139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426729907 + ... + 1426730084.

It is an arithmetic number, because the mean of its divisors is an integer number (64202849820).

Almost surely, 2^253957939199 is an apocalyptic number.

253957939199 is a deficient number, since it is larger than the sum of its proper divisors (2853460081).

253957939199 is an equidigital number, since it uses as much as digits as its factorization.

253957939199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853460080.

The product of its digits is 186004350, while the sum is 71.

The spelling of 253957939199 in words is "two hundred fifty-three billion, nine hundred fifty-seven million, nine hundred thirty-nine thousand, one hundred ninety-nine".