225513357391 has 16 divisors (see below), whose sum is σ = 258163167744. Its totient is φ = 192972203424.

The previous prime is 225513357383. The next prime is 225513357451. The reversal of 225513357391 is 193753315522.

It is not a de Polignac number, because 225513357391 - 2³ = 225513357383 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 (225513357301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12427561 + ... + 12445693.

It is an arithmetic number, because the mean of its divisors is an integer number (16135197984).

Almost surely, 2^225513357391 is an apocalyptic number.

225513357391 is a deficient number, since it is larger than the sum of its proper divisors (32649810353).

225513357391 is a wasteful number, since it uses less digits than its factorization.

225513357391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030.

The product of its digits is 850500, while the sum is 46.

The spelling of 225513357391 in words is "two hundred twenty-five billion, five hundred thirteen million, three hundred fifty-seven thousand, three hundred ninety-one".