225223233031 has 4 divisors (see below), whose sum is σ = 226843544200. Its totient is φ = 223602921864.

The previous prime is 225223233029. The next prime is 225223233043. The reversal of 225223233031 is 130332322522.

It is a happy number.

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 225223233031 - 2¹ = 225223233029 is a prime.

It is a super-2 number, since 2×225223233031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225223233071) 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, 810155376 + ... + 810155653.

It is an arithmetic number, because the mean of its divisors is an integer number (56710886050).

Almost surely, 2^225223233031 is an apocalyptic number.

225223233031 is a deficient number, since it is larger than the sum of its proper divisors (1620311169).

225223233031 is a wasteful number, since it uses less digits than its factorization.

225223233031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620311168.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 225223233031 its reverse (130332322522), we get a palindrome (355555555553).

The spelling of 225223233031 in words is "two hundred twenty-five billion, two hundred twenty-three million, two hundred thirty-three thousand, thirty-one".