253450336563 has 6 divisors (see below), whose sum is σ = 366094930604. Its totient is φ = 168966891036.

The previous prime is 253450336511. The next prime is 253450336567. The reversal of 253450336563 is 365633054352.

It is a happy number.

253450336563 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 50 + 3 + 36 + 563 = 666.

It is not a de Polignac number, because 253450336563 - 2²¹ = 253448239411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253450336567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14080574245 + ... + 14080574262.

Almost surely, 2^253450336563 is an apocalyptic number.

253450336563 is a deficient number, since it is larger than the sum of its proper divisors (112644594041).

253450336563 is a wasteful number, since it uses less digits than its factorization.

253450336563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28161148513 (or 28161148510 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 45.

The spelling of 253450336563 in words is "two hundred fifty-three billion, four hundred fifty million, three hundred thirty-six thousand, five hundred sixty-three".