225145532423 has 8 divisors (see below), whose sum is σ = 257381506560. Its totient is φ = 192927639960.

The previous prime is 225145532401. The next prime is 225145532429. The reversal of 225145532423 is 324235541522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225145532423 - 2²² = 225141338119 is a prime.

It is a super-2 number, since 2×225145532423² (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 (225145532429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4493723 + ... + 4543548.

It is an arithmetic number, because the mean of its divisors is an integer number (32172688320).

Almost surely, 2^225145532423 is an apocalyptic number.

225145532423 is a deficient number, since it is larger than the sum of its proper divisors (32235974137).

225145532423 is an equidigital number, since it uses as much as digits as its factorization.

225145532423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040837.

The product of its digits is 288000, while the sum is 38.

Subtracting 225145532423 from its reverse (324235541522), we obtain a palindrome (99090009099).

The spelling of 225145532423 in words is "two hundred twenty-five billion, one hundred forty-five million, five hundred thirty-two thousand, four hundred twenty-three".