225772151237 has 4 divisors (see below), whose sum is σ = 225826519020. Its totient is φ = 225717783456.

The previous prime is 225772151233. The next prime is 225772151263. The reversal of 225772151237 is 732151277522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 123730876516 + 102041274721 = 351754^2 + 319439^2 .

It is a cyclic number.

It is not a de Polignac number, because 225772151237 - 2² = 225772151233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225772151233) 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, 27177662 + ... + 27185967.

It is an arithmetic number, because the mean of its divisors is an integer number (56456629755).

Almost surely, 2^225772151237 is an apocalyptic number.

It is an amenable number.

225772151237 is a deficient number, since it is larger than the sum of its proper divisors (54367783).

225772151237 is an equidigital number, since it uses as much as digits as its factorization.

225772151237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54367782.

The product of its digits is 411600, while the sum is 44.

The spelling of 225772151237 in words is "two hundred twenty-five billion, seven hundred seventy-two million, one hundred fifty-one thousand, two hundred thirty-seven".