225205554 has 32 divisors (see below), whose sum is σ = 519488640. Its totient is φ = 63752832.

The previous prime is 225205553. The next prime is 225205567. The reversal of 225205554 is 455502522.

It is not an unprimeable number, because it can be changed into a prime (225205553) 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, 20019 + ... + 29174.

It is an arithmetic number, because the mean of its divisors is an integer number (16234020).

Almost surely, 2^225205554 is an apocalyptic number.

225205554 is an abundant number, since it is smaller than the sum of its proper divisors (294283086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225205554 is a wasteful number, since it uses less digits than its factorization.

225205554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49314.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 225205554 is about 15006.8502358090. The cubic root of 225205554 is about 608.4053611009.

The spelling of 225205554 in words is "two hundred twenty-five million, two hundred five thousand, five hundred fifty-four".