253106091 has 12 divisors (see below), whose sum is σ = 417826032. Its totient is φ = 144632016.

The previous prime is 253106071. The next prime is 253106107. The reversal of 253106091 is 190601352.

253106091 is a `hidden beast` number, since 2 + 53 + 1 + 0 + 609 + 1 = 666.

It is not a de Polignac number, because 253106091 - 2⁵ = 253106059 is a prime.

It is a super-3 number, since 3×253106091³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (253106071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008716 + ... + 2008841.

It is an arithmetic number, because the mean of its divisors is an integer number (34818836).

Almost surely, 2^253106091 is an apocalyptic number.

253106091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253106091 is a deficient number, since it is larger than the sum of its proper divisors (164719941).

253106091 is a wasteful number, since it uses less digits than its factorization.

253106091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017570 (or 4017567 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 253106091 is about 15909.3083130600. The cubic root of 253106091 is about 632.5587470105.

The spelling of 253106091 in words is "two hundred fifty-three million, one hundred six thousand, ninety-one".