253853261 has 8 divisors (see below), whose sum is σ = 256782240. Its totient is φ = 250935408.

The previous prime is 253853233. The next prime is 253853273. The reversal of 253853261 is 162358352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253853261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253853221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48410 + ... + 53396.

It is an arithmetic number, because the mean of its divisors is an integer number (32097780).

Almost surely, 2^253853261 is an apocalyptic number.

It is an amenable number.

253853261 is a deficient number, since it is larger than the sum of its proper divisors (2928979).

253853261 is a wasteful number, since it uses less digits than its factorization.

253853261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its digits is 43200, while the sum is 35.

The square root of 253853261 is about 15932.7731735564. The cubic root of 253853261 is about 633.1805740225.

The spelling of 253853261 in words is "two hundred fifty-three million, eight hundred fifty-three thousand, two hundred sixty-one".