225505479 has 16 divisors (see below), whose sum is σ = 311620320. Its totient is φ = 144883200.

The previous prime is 225505477. The next prime is 225505481. The reversal of 225505479 is 974505522.

It is an interprime number because it is at equal distance from previous prime (225505477) and next prime (225505481).

It is not a de Polignac number, because 225505479 - 2¹ = 225505477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225505477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51579 + ... + 55779.

It is an arithmetic number, because the mean of its divisors is an integer number (19476270).

Almost surely, 2^225505479 is an apocalyptic number.

225505479 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

225505479 is a deficient number, since it is larger than the sum of its proper divisors (86114841).

225505479 is a wasteful number, since it uses less digits than its factorization.

225505479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 225505479 is about 15016.8398473181. The cubic root of 225505479 is about 608.6753293269.

The spelling of 225505479 in words is "two hundred twenty-five million, five hundred five thousand, four hundred seventy-nine".