225607211455 has 16 divisors (see below), whose sum is σ = 271049785344. Its totient is φ = 180271821600.

The previous prime is 225607211447. The next prime is 225607211503. The reversal of 225607211455 is 554112706522.

It is a happy number.

It is not a de Polignac number, because 225607211455 - 2³ = 225607211447 is a prime.

It is a super-2 number, since 2×225607211455² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16215612 + ... + 16229518.

It is an arithmetic number, because the mean of its divisors is an integer number (16940611584).

Almost surely, 2^225607211455 is an apocalyptic number.

225607211455 is a deficient number, since it is larger than the sum of its proper divisors (45442573889).

225607211455 is a wasteful number, since it uses less digits than its factorization.

225607211455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17526.

The product of its (nonzero) digits is 168000, while the sum is 40.

Adding to 225607211455 its reverse (554112706522), we get a palindrome (779719917977).

The spelling of 225607211455 in words is "two hundred twenty-five billion, six hundred seven million, two hundred eleven thousand, four hundred fifty-five".