253111011 has 16 divisors (see below), whose sum is σ = 357654528. Its totient is φ = 158672000.

The previous prime is 253111009. The next prime is 253111013. The reversal of 253111011 is 110111352.

It is an interprime number because it is at equal distance from previous prime (253111009) and next prime (253111013).

It is a cyclic number.

It is not a de Polignac number, because 253111011 - 2¹ = 253111009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253111013) 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, 106486 + ... + 108836.

It is an arithmetic number, because the mean of its divisors is an integer number (22353408).

Almost surely, 2^253111011 is an apocalyptic number.

253111011 is a deficient number, since it is larger than the sum of its proper divisors (104543517).

253111011 is a wasteful number, since it uses less digits than its factorization.

253111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 253111011 is about 15909.4629387670. The cubic root of 253111011 is about 632.5628456460.

Adding to 253111011 its reverse (110111352), we get a palindrome (363222363).

The spelling of 253111011 in words is "two hundred fifty-three million, one hundred eleven thousand, eleven".