225542201251 has 4 divisors (see below), whose sum is σ = 225547988400. Its totient is φ = 225536414104.

The previous prime is 225542201239. The next prime is 225542201273. The reversal of 225542201251 is 152102245522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225542201251 - 2⁷ = 225542201123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225542201231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2834716 + ... + 2913193.

It is an arithmetic number, because the mean of its divisors is an integer number (56386997100).

Almost surely, 2^225542201251 is an apocalyptic number.

225542201251 is a deficient number, since it is larger than the sum of its proper divisors (5787149).

225542201251 is an equidigital number, since it uses as much as digits as its factorization.

225542201251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5787148.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 225542201251 its reverse (152102245522), we get a palindrome (377644446773).

The spelling of 225542201251 in words is "two hundred twenty-five billion, five hundred forty-two million, two hundred one thousand, two hundred fifty-one".