253623136 has 48 divisors (see below), whose sum is σ = 569376864. Its totient is φ = 110168064.

The previous prime is 253623127. The next prime is 253623137. The reversal of 253623136 is 631326352.

It is a happy number.

It is a super-2 number, since 2×253623136² = 128649390228948992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253623098 and 253623107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253623137) 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 7 ways as a sum of consecutive naturals, for example, 10860 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (11862018).

Almost surely, 2^253623136 is an apocalyptic number.

253623136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

253623136 is an abundant number, since it is smaller than the sum of its proper divisors (315753728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253623136 is a wasteful number, since it uses less digits than its factorization.

253623136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35903 (or 35895 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

The square root of 253623136 is about 15925.5497864281. The cubic root of 253623136 is about 632.9891842783.

Adding to 253623136 its reverse (631326352), we get a palindrome (884949488).

The spelling of 253623136 in words is "two hundred fifty-three million, six hundred twenty-three thousand, one hundred thirty-six".