225123553 has 4 divisors (see below), whose sum is σ = 225495040. Its totient is φ = 224752068.

The previous prime is 225123541. The next prime is 225123557. The reversal of 225123553 is 355321522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225123553 - 2¹³ = 225115361 is a prime.

It is a super-2 number, since 2×225123553² = 101361228230687618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225123557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184833 + ... + 186046.

It is an arithmetic number, because the mean of its divisors is an integer number (56373760).

Almost surely, 2^225123553 is an apocalyptic number.

It is an amenable number.

225123553 is a deficient number, since it is larger than the sum of its proper divisors (371487).

225123553 is an equidigital number, since it uses as much as digits as its factorization.

225123553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371486.

The product of its digits is 9000, while the sum is 28.

The square root of 225123553 is about 15004.1178681054. The cubic root of 225123553 is about 608.3315087120.

The spelling of 225123553 in words is "two hundred twenty-five million, one hundred twenty-three thousand, five hundred fifty-three".