253949801 has 12 divisors (see below), whose sum is σ = 310960080. Its totient is φ = 206214120.

The previous prime is 253949753. The next prime is 253949807. The reversal of 253949801 is 108949352.

It is a de Polignac number, because none of the positive numbers 2^k-253949801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253949807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135455 + ... + 137316.

It is an arithmetic number, because the mean of its divisors is an integer number (25913340).

Almost surely, 2^253949801 is an apocalyptic number.

It is an amenable number.

253949801 is a deficient number, since it is larger than the sum of its proper divisors (57010279).

253949801 is a wasteful number, since it uses less digits than its factorization.

253949801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272804 (or 272797 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 253949801 is about 15935.8024899909. The cubic root of 253949801 is about 633.2608297118.

The spelling of 253949801 in words is "two hundred fifty-three million, nine hundred forty-nine thousand, eight hundred one".