253552563 has 12 divisors (see below), whose sum is σ = 399537528. Its totient is φ = 153668160.

The previous prime is 253552517. The next prime is 253552577. The reversal of 253552563 is 365255352.

253552563 is a `hidden beast` number, since 2 + 53 + 552 + 56 + 3 = 666.

It is not a de Polignac number, because 253552563 - 2⁶ = 253552499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253552163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280470 + ... + 1280667.

It is an arithmetic number, because the mean of its divisors is an integer number (33294794).

Almost surely, 2^253552563 is an apocalyptic number.

253552563 is a deficient number, since it is larger than the sum of its proper divisors (145984965).

253552563 is a wasteful number, since it uses less digits than its factorization.

253552563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561154 (or 2561151 counting only the distinct ones).

The product of its digits is 135000, while the sum is 36.

The square root of 253552563 is about 15923.3339159863. Note that the first 3 decimals coincide. The cubic root of 253552563 is about 632.9304671196.

The spelling of 253552563 in words is "two hundred fifty-three million, five hundred fifty-two thousand, five hundred sixty-three".