225653541 has 4 divisors (see below), whose sum is σ = 300871392. Its totient is φ = 150435692.

The previous prime is 225653539. The next prime is 225653567. The reversal of 225653541 is 145356522.

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 225653541 - 2¹ = 225653539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225653501) 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, 37608921 + ... + 37608926.

It is an arithmetic number, because the mean of its divisors is an integer number (75217848).

Almost surely, 2^225653541 is an apocalyptic number.

It is an amenable number.

225653541 is a deficient number, since it is larger than the sum of its proper divisors (75217851).

225653541 is an equidigital number, since it uses as much as digits as its factorization.

225653541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75217850.

The product of its digits is 36000, while the sum is 33.

The square root of 225653541 is about 15021.7689038275. The cubic root of 225653541 is about 608.8085145163.

It can be divided in two parts, 22565 and 3541, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 225653541 in words is "two hundred twenty-five million, six hundred fifty-three thousand, five hundred forty-one".