245525553 has 32 divisors (see below), whose sum is σ = 447686400. Its totient is φ = 129506688.

The previous prime is 245525531. The next prime is 245525557. The reversal of 245525553 is 355525542.

245525553 is a `hidden beast` number, since 2 + 4 + 552 + 55 + 53 = 666.

It is not a de Polignac number, because 245525553 - 2²⁴ = 228748337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245525557) 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 31 ways as a sum of consecutive naturals, for example, 47508 + ... + 52421.

It is an arithmetic number, because the mean of its divisors is an integer number (13990200).

Almost surely, 2^245525553 is an apocalyptic number.

It is an amenable number.

245525553 is a deficient number, since it is larger than the sum of its proper divisors (202160847).

245525553 is a wasteful number, since it uses less digits than its factorization.

245525553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99958 (or 99952 counting only the distinct ones).

The product of its digits is 150000, while the sum is 36.

The square root of 245525553 is about 15669.2550237719. The cubic root of 245525553 is about 626.1795775809.

The spelling of 245525553 in words is "two hundred forty-five million, five hundred twenty-five thousand, five hundred fifty-three".