253900393388 has 12 divisors (see below), whose sum is σ = 444673098240. Its totient is φ = 126850936752.

The previous prime is 253900393387. The next prime is 253900393393. The reversal of 253900393388 is 883393009352.

It is not an unprimeable number, because it can be changed into a prime (253900393387) 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, 24809231 + ... + 24819462.

It is an arithmetic number, because the mean of its divisors is an integer number (37056091520).

Almost surely, 2^253900393388 is an apocalyptic number.

It is an amenable number.

253900393388 is a deficient number, since it is larger than the sum of its proper divisors (190772704852).

253900393388 is a wasteful number, since it uses less digits than its factorization.

253900393388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49629976 (or 49629974 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 253900393388 in words is "two hundred fifty-three billion, nine hundred million, three hundred ninety-three thousand, three hundred eighty-eight".