253233794399 has 4 divisors (see below), whose sum is σ = 253234964136. Its totient is φ = 253232624664.

The previous prime is 253233794371. The next prime is 253233794423. The reversal of 253233794399 is 993497332352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253233794399 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 (253233794339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154649 + ... + 728274.

It is an arithmetic number, because the mean of its divisors is an integer number (63308741034).

Almost surely, 2^253233794399 is an apocalyptic number.

253233794399 is a deficient number, since it is larger than the sum of its proper divisors (1169737).

253233794399 is an equidigital number, since it uses as much as digits as its factorization.

253233794399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169736.

The product of its digits is 33067440, while the sum is 59.

The spelling of 253233794399 in words is "two hundred fifty-three billion, two hundred thirty-three million, seven hundred ninety-four thousand, three hundred ninety-nine".