253522431 has 6 divisors (see below), whose sum is σ = 366199080. Its totient is φ = 169014948.

The previous prime is 253522429. The next prime is 253522441. The reversal of 253522431 is 134225352.

It is a happy number.

It is not a de Polignac number, because 253522431 - 2¹ = 253522429 is a prime.

It is a super-2 number, since 2×253522431² = 128547246040299522, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 253522395 and 253522404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253522441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14084571 + ... + 14084588.

It is an arithmetic number, because the mean of its divisors is an integer number (61033180).

Almost surely, 2^253522431 is an apocalyptic number.

253522431 is a deficient number, since it is larger than the sum of its proper divisors (112676649).

253522431 is a wasteful number, since it uses less digits than its factorization.

253522431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28169165 (or 28169162 counting only the distinct ones).

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

The square root of 253522431 is about 15922.3877292321. The cubic root of 253522431 is about 632.9053937960.

Adding to 253522431 its reverse (134225352), we get a palindrome (387747783).

The spelling of 253522431 in words is "two hundred fifty-three million, five hundred twenty-two thousand, four hundred thirty-one".