253212556143 has 4 divisors (see below), whose sum is σ = 337616741528. Its totient is φ = 168808370760.

The previous prime is 253212556139. The next prime is 253212556159. The reversal of 253212556143 is 341655212352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 253212556143 - 2² = 253212556139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253212556183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42202092688 + ... + 42202092693.

It is an arithmetic number, because the mean of its divisors is an integer number (84404185382).

Almost surely, 2^253212556143 is an apocalyptic number.

253212556143 is a deficient number, since it is larger than the sum of its proper divisors (84404185385).

253212556143 is an equidigital number, since it uses as much as digits as its factorization.

253212556143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84404185384.

The product of its digits is 216000, while the sum is 39.

Adding to 253212556143 its reverse (341655212352), we get a palindrome (594867768495).

The spelling of 253212556143 in words is "two hundred fifty-three billion, two hundred twelve million, five hundred fifty-six thousand, one hundred forty-three".