253430111 has 16 divisors (see below), whose sum is σ = 279911808. Its totient is φ = 227541600.

The previous prime is 253430087. The next prime is 253430167. The reversal of 253430111 is 111034352.

It is not a de Polignac number, because 253430111 - 2²² = 249235807 is a prime.

It is a super-2 number, since 2×253430111² = 128453642322944642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253430711) 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, 571856 + ... + 572298.

It is an arithmetic number, because the mean of its divisors is an integer number (17494488).

Almost surely, 2^253430111 is an apocalyptic number.

253430111 is a deficient number, since it is larger than the sum of its proper divisors (26481697).

253430111 is a wasteful number, since it uses less digits than its factorization.

253430111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 253430111 is about 15919.4884025838. The cubic root of 253430111 is about 632.8285604634.

Adding to 253430111 its reverse (111034352), we get a palindrome (364464463).

The spelling of 253430111 in words is "two hundred fifty-three million, four hundred thirty thousand, one hundred eleven".