225546252455 has 32 divisors (see below), whose sum is σ = 295836577344. Its totient is φ = 164405477376.

The previous prime is 225546252439. The next prime is 225546252461. The reversal of 225546252455 is 554252645522.

It is a cyclic number.

It is not a de Polignac number, because 225546252455 - 2⁴ = 225546252439 is a prime.

It is a super-2 number, since 2×225546252455² (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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139967 + ... + 686063.

It is an arithmetic number, because the mean of its divisors is an integer number (9244893042).

Almost surely, 2^225546252455 is an apocalyptic number.

225546252455 is a deficient number, since it is larger than the sum of its proper divisors (70290324889).

225546252455 is a wasteful number, since it uses less digits than its factorization.

225546252455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546275.

The product of its digits is 4800000, while the sum is 47.

Adding to 225546252455 its reverse (554252645522), we get a palindrome (779798897977).

The spelling of 225546252455 in words is "two hundred twenty-five billion, five hundred forty-six million, two hundred fifty-two thousand, four hundred fifty-five".