225537555 has 64 divisors (see below), whose sum is σ = 399679488. Its totient is φ = 108103680.

The previous prime is 225537539. The next prime is 225537569. The reversal of 225537555 is 555735522.

It is not a de Polignac number, because 225537555 - 2⁴ = 225537539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 814077 + ... + 814353.

It is an arithmetic number, because the mean of its divisors is an integer number (6244992).

Almost surely, 2^225537555 is an apocalyptic number.

225537555 is a deficient number, since it is larger than the sum of its proper divisors (174141933).

225537555 is a wasteful number, since it uses less digits than its factorization.

225537555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its digits is 262500, while the sum is 39.

The square root of 225537555 is about 15017.9078103443. The cubic root of 225537555 is about 608.7041873755.

The spelling of 225537555 in words is "two hundred twenty-five million, five hundred thirty-seven thousand, five hundred fifty-five".