225496405 has 4 divisors (see below), whose sum is σ = 270595692. Its totient is φ = 180397120.

The previous prime is 225496399. The next prime is 225496417. The reversal of 225496405 is 504694522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130667761 + 94828644 = 11431^2 + 9738^2 .

It is not a de Polignac number, because 225496405 - 2¹³ = 225488213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22549636 + ... + 22549645.

It is an arithmetic number, because the mean of its divisors is an integer number (67648923).

Almost surely, 2^225496405 is an apocalyptic number.

It is an amenable number.

225496405 is a deficient number, since it is larger than the sum of its proper divisors (45099287).

225496405 is an equidigital number, since it uses as much as digits as its factorization.

225496405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45099286.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 225496405 is about 15016.5377167974. The cubic root of 225496405 is about 608.6671651586.

The spelling of 225496405 in words is "two hundred twenty-five million, four hundred ninety-six thousand, four hundred five".