253536631 has 16 divisors (see below), whose sum is σ = 266289408. Its totient is φ = 241113600.

The previous prime is 253536611. The next prime is 253536641. The reversal of 253536631 is 136635352.

It is a cyclic number.

It is not a de Polignac number, because 253536631 - 2¹³ = 253528439 is a prime.

It is a super-2 number, since 2×253536631² = 128561646517660322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253536601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549741 + ... + 550201.

It is an arithmetic number, because the mean of its divisors is an integer number (16643088).

Almost surely, 2^253536631 is an apocalyptic number.

253536631 is a deficient number, since it is larger than the sum of its proper divisors (12752777).

253536631 is a wasteful number, since it uses less digits than its factorization.

253536631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 48600, while the sum is 34.

The square root of 253536631 is about 15922.8336360084. The cubic root of 253536631 is about 632.9172100927.

The spelling of 253536631 in words is "two hundred fifty-three million, five hundred thirty-six thousand, six hundred thirty-one".