225400304531215 has 32 divisors (see below), whose sum is σ = 297197604506880. Its totient is φ = 162745250304000.

The previous prime is 225400304531183. The next prime is 225400304531219. The reversal of 225400304531215 is 512135403004522.

It is a happy number.

It is not a de Polignac number, because 225400304531215 - 2⁵ = 225400304531183 is a prime.

It is a super-2 number, since 2×225400304531215² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225400304531219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486120240 + ... + 486583690.

It is an arithmetic number, because the mean of its divisors is an integer number (9287425140840).

Almost surely, 2^{225400304531215} is an apocalyptic number.

225400304531215 is a deficient number, since it is larger than the sum of its proper divisors (71797299975665).

225400304531215 is a wasteful number, since it uses less digits than its factorization.

225400304531215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527223.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 225400304531215 its reverse (512135403004522), we get a palindrome (737535707535737).

The spelling of 225400304531215 in words is "two hundred twenty-five trillion, four hundred billion, three hundred four million, five hundred thirty-one thousand, two hundred fifteen".