225679557 has 4 divisors (see below), whose sum is σ = 300906080. Its totient is φ = 150453036.

The previous prime is 225679513. The next prime is 225679561. The reversal of 225679557 is 755976522.

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 not a de Polignac number, because 225679557 - 2⁷ = 225679429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225679567) 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, 37613257 + ... + 37613262.

It is an arithmetic number, because the mean of its divisors is an integer number (75226520).

Almost surely, 2^225679557 is an apocalyptic number.

It is an amenable number.

225679557 is a deficient number, since it is larger than the sum of its proper divisors (75226523).

225679557 is an equidigital number, since it uses as much as digits as its factorization.

225679557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75226522.

The product of its digits is 1323000, while the sum is 48.

The square root of 225679557 is about 15022.6348221609. The cubic root of 225679557 is about 608.8319104911.

The spelling of 225679557 in words is "two hundred twenty-five million, six hundred seventy-nine thousand, five hundred fifty-seven".