225254346164 has 12 divisors (see below), whose sum is σ = 394234194144. Its totient is φ = 112616004984.

The previous prime is 225254346133. The next prime is 225254346179. The reversal of 225254346164 is 461643452522.

It is a happy number.

It is a super-2 number, since 2×225254346164² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2746562 + ... + 2827385.

It is an arithmetic number, because the mean of its divisors is an integer number (32852849512).

Almost surely, 2^225254346164 is an apocalyptic number.

It is an amenable number.

225254346164 is a deficient number, since it is larger than the sum of its proper divisors (168979847980).

225254346164 is a wasteful number, since it uses less digits than its factorization.

225254346164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584054 (or 5584052 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

Adding to 225254346164 its reverse (461643452522), we get a palindrome (686897798686).

The spelling of 225254346164 in words is "two hundred twenty-five billion, two hundred fifty-four million, three hundred forty-six thousand, one hundred sixty-four".