225909553 has 8 divisors (see below), whose sum is σ = 227537640. Its totient is φ = 224286720.

The previous prime is 225909547. The next prime is 225909559. The reversal of 225909553 is 355909522.

It is an interprime number because it is at equal distance from previous prime (225909547) and next prime (225909559).

It can be written as a sum of positive squares in 4 ways, for example, as 199572129 + 26337424 = 14127^2 + 5132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225909553 - 2⁵ = 225909521 is a prime.

It is a super-2 number, since 2×225909553² = 102070252273319618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225909559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125383 + ... + 127171.

It is an arithmetic number, because the mean of its divisors is an integer number (28442205).

Almost surely, 2^225909553 is an apocalyptic number.

It is an amenable number.

225909553 is a deficient number, since it is larger than the sum of its proper divisors (1628087).

225909553 is a wasteful number, since it uses less digits than its factorization.

225909553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 225909553 is about 15030.2878548616. The cubic root of 225909553 is about 609.0386658331.

The spelling of 225909553 in words is "two hundred twenty-five million, nine hundred nine thousand, five hundred fifty-three".