253535631 has 8 divisors (see below), whose sum is σ = 338467584. Its totient is φ = 168813720.

The previous prime is 253535621. The next prime is 253535669. The reversal of 253535631 is 136535352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253535631 - 2¹⁰ = 253534607 is a prime.

It is a super-2 number, since 2×253535631² = 128560632373136322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253535592 and 253535601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253535621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49671 + ... + 54536.

It is an arithmetic number, because the mean of its divisors is an integer number (42308448).

Almost surely, 2^253535631 is an apocalyptic number.

253535631 is a deficient number, since it is larger than the sum of its proper divisors (84931953).

253535631 is a wasteful number, since it uses less digits than its factorization.

253535631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105021.

The product of its digits is 40500, while the sum is 33.

The square root of 253535631 is about 15922.8022345315. The cubic root of 253535631 is about 632.9163779736.

The spelling of 253535631 in words is "two hundred fifty-three million, five hundred thirty-five thousand, six hundred thirty-one".