225537855 has 16 divisors (see below), whose sum is σ = 361908864. Its totient is φ = 119937440.

The previous prime is 225537841. The next prime is 225537869. The reversal of 225537855 is 558735522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225537841) and next prime (225537869).

It is not a de Polignac number, because 225537855 - 2⁶ = 225537791 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, 16461 + ... + 26870.

It is an arithmetic number, because the mean of its divisors is an integer number (22619304).

Almost surely, 2^225537855 is an apocalyptic number.

225537855 is a deficient number, since it is larger than the sum of its proper divisors (136371009).

225537855 is a wasteful number, since it uses less digits than its factorization.

225537855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43686.

The product of its digits is 420000, while the sum is 42.

The square root of 225537855 is about 15017.9177984167. The cubic root of 225537855 is about 608.7044572658.

The spelling of 225537855 in words is "two hundred twenty-five million, five hundred thirty-seven thousand, eight hundred fifty-five".