253209241 has 16 divisors (see below), whose sum is σ = 267974784. Its totient is φ = 238944384.

The previous prime is 253209233. The next prime is 253209263. The reversal of 253209241 is 142902352.

It is a cyclic number.

It is not a de Polignac number, because 253209241 - 2³ = 253209233 is a prime.

It is a super-2 number, since 2×253209241² = 128229839455592162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253279241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265221 + ... + 266173.

It is an arithmetic number, because the mean of its divisors is an integer number (16748424).

Almost surely, 2^253209241 is an apocalyptic number.

It is an amenable number.

253209241 is a deficient number, since it is larger than the sum of its proper divisors (14765543).

253209241 is a wasteful number, since it uses less digits than its factorization.

253209241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 253209241 is about 15912.5497956801. The cubic root of 253209241 is about 632.6446656237.

The spelling of 253209241 in words is "two hundred fifty-three million, two hundred nine thousand, two hundred forty-one".