253364563 has 4 divisors (see below), whose sum is σ = 266699560. Its totient is φ = 240029568.

The previous prime is 253364521. The next prime is 253364569. The reversal of 253364563 is 365463352.

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 253364563 - 2¹³ = 253356371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253364569) 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, 6667470 + ... + 6667507.

It is an arithmetic number, because the mean of its divisors is an integer number (66674890).

Almost surely, 2^253364563 is an apocalyptic number.

253364563 is a deficient number, since it is larger than the sum of its proper divisors (13334997).

253364563 is a wasteful number, since it uses less digits than its factorization.

253364563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334996.

The product of its digits is 194400, while the sum is 37.

The square root of 253364563 is about 15917.4295349469. The cubic root of 253364563 is about 632.7739968034.

It can be divided in two parts, 253 and 364563, that added together give a square (364816 = 604²).

The spelling of 253364563 in words is "two hundred fifty-three million, three hundred sixty-four thousand, five hundred sixty-three".