202455312263 has 4 divisors (see below), whose sum is σ = 211257717168. Its totient is φ = 193652907360.

The previous prime is 202455312233. The next prime is 202455312271. The reversal of 202455312263 is 362213554202.

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

It is a cyclic number.

It is not a de Polignac number, because 202455312263 - 2²⁶ = 202388203399 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 (202455312233) 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, 4401202418 + ... + 4401202463.

It is an arithmetic number, because the mean of its divisors is an integer number (52814429292).

Almost surely, 2^202455312263 is an apocalyptic number.

202455312263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202455312263 is a deficient number, since it is larger than the sum of its proper divisors (8802404905).

202455312263 is an equidigital number, since it uses as much as digits as its factorization.

202455312263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8802404904.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 202455312263 its reverse (362213554202), we get a palindrome (564668866465).

The spelling of 202455312263 in words is "two hundred two billion, four hundred fifty-five million, three hundred twelve thousand, two hundred sixty-three".