623253563 has 4 divisors (see below), whose sum is σ = 650351568. Its totient is φ = 596155560.

The previous prime is 623253559. The next prime is 623253569. The reversal of 623253563 is 365352326.

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 623253563 - 2² = 623253559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623253569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13548968 + ... + 13549013.

It is an arithmetic number, because the mean of its divisors is an integer number (162587892).

Almost surely, 2^623253563 is an apocalyptic number.

623253563 is a deficient number, since it is larger than the sum of its proper divisors (27098005).

623253563 is a wasteful number, since it uses less digits than its factorization.

623253563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27098004.

The product of its digits is 97200, while the sum is 35.

The square root of 623253563 is about 24965.0468255119. The cubic root of 623253563 is about 854.1908663549.

It can be divided in two parts, 6232 and 53563, that added together give a palindrome (59795).

The spelling of 623253563 in words is "six hundred twenty-three million, two hundred fifty-three thousand, five hundred sixty-three".