253812822 has 64 divisors (see below), whose sum is σ = 557979840. Its totient is φ = 76640256.

The previous prime is 253812787. The next prime is 253812827. The reversal of 253812822 is 228218352.

It is a super-2 number, since 2×253812822² = 128841897223207368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253812827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411058 + ... + 411674.

It is an arithmetic number, because the mean of its divisors is an integer number (8718435).

Almost surely, 2^253812822 is an apocalyptic number.

253812822 is an abundant number, since it is smaller than the sum of its proper divisors (304167018).

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

253812822 is a wasteful number, since it uses less digits than its factorization.

253812822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785.

The product of its digits is 15360, while the sum is 33.

The square root of 253812822 is about 15931.5040721207. The cubic root of 253812822 is about 633.1469502026.

It can be divided in two parts, 25381 and 2822, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 253812822 in words is "two hundred fifty-three million, eight hundred twelve thousand, eight hundred twenty-two".