253940194625 has 32 divisors (see below), whose sum is σ = 343751291520. Its totient is φ = 186175800000.

The previous prime is 253940194579. The next prime is 253940194639. The reversal of 253940194625 is 526491049352.

It is not a de Polignac number, because 253940194625 - 2¹⁰ = 253940193601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336251 + ... + 788000.

It is an arithmetic number, because the mean of its divisors is an integer number (10742227860).

Almost surely, 2^253940194625 is an apocalyptic number.

253940194625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253940194625 is a deficient number, since it is larger than the sum of its proper divisors (89811096895).

253940194625 is a wasteful number, since it uses less digits than its factorization.

253940194625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124418 (or 1124408 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 253940194625 in words is "two hundred fifty-three billion, nine hundred forty million, one hundred ninety-four thousand, six hundred twenty-five".