253532241 has 32 divisors (see below), whose sum is σ = 385651200. Its totient is φ = 164540160.

The previous prime is 253532207. The next prime is 253532261. The reversal of 253532241 is 142235352.

It is a happy number.

It is not a de Polignac number, because 253532241 - 2²² = 249337937 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 (253532261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305415 + ... + 306243.

It is an arithmetic number, because the mean of its divisors is an integer number (12051600).

Almost surely, 2^253532241 is an apocalyptic number.

It is an amenable number.

253532241 is a deficient number, since it is larger than the sum of its proper divisors (132118959).

253532241 is a wasteful number, since it uses less digits than its factorization.

253532241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1120 counting only the distinct ones).

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

The square root of 253532241 is about 15922.6957830639. The cubic root of 253532241 is about 632.9135570734.

Adding to 253532241 its reverse (142235352), we get a palindrome (395767593).

The spelling of 253532241 in words is "two hundred fifty-three million, five hundred thirty-two thousand, two hundred forty-one".