225951285 has 16 divisors (see below), whose sum is σ = 413168256. Its totient is φ = 103291968.

The previous prime is 225951277. The next prime is 225951293. The reversal of 225951285 is 582159522.

It is an interprime number because it is at equal distance from previous prime (225951277) and next prime (225951293).

It is not a de Polignac number, because 225951285 - 2³ = 225951277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075854 + ... + 1076063.

It is an arithmetic number, because the mean of its divisors is an integer number (25823016).

Almost surely, 2^225951285 is an apocalyptic number.

It is an amenable number.

225951285 is a deficient number, since it is larger than the sum of its proper divisors (187216971).

225951285 is a wasteful number, since it uses less digits than its factorization.

225951285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151932.

The product of its digits is 72000, while the sum is 39.

The square root of 225951285 is about 15031.6760542529. The cubic root of 225951285 is about 609.0761658508.

It can be divided in two parts, 225 and 951285, that added together give a triangular number (951510 = T₁₃₇₉).

The spelling of 225951285 in words is "two hundred twenty-five million, nine hundred fifty-one thousand, two hundred eighty-five".