253235241 has 40 divisors (see below), whose sum is σ = 437621184. Its totient is φ = 142935840.

The previous prime is 253235239. The next prime is 253235243. The reversal of 253235241 is 142532352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253235239) and next prime (253235243).

It is not a de Polignac number, because 253235241 - 2¹ = 253235239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (253235243) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44371 + ... + 49751.

Almost surely, 2^253235241 is an apocalyptic number.

253235241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

253235241 is a deficient number, since it is larger than the sum of its proper divisors (184385943).

253235241 is an equidigital number, since it uses as much as digits as its factorization.

253235241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483 (or 5474 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 253235241 is about 15913.3667399454. The cubic root of 253235241 is about 632.6663185964. Note that the first 3 decimals are identical.

Adding to 253235241 its reverse (142532352), we get a palindrome (395767593).

It can be divided in two parts, 2532 and 35241, that added together give a palindrome (37773).

The spelling of 253235241 in words is "two hundred fifty-three million, two hundred thirty-five thousand, two hundred forty-one".