225541213623 has 24 divisors (see below), whose sum is σ = 358917086736. Its totient is φ = 135338256000.

The previous prime is 225541213619. The next prime is 225541213631. The reversal of 225541213623 is 326312145522.

225541213623 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 4 + 1 + 21 + 3 + 623 = 666.

It is not a de Polignac number, because 225541213623 - 2² = 225541213619 is a prime.

It is a super-2 number, since 2×225541213623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225541213693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11268190 + ... + 11288187.

It is an arithmetic number, because the mean of its divisors is an integer number (14954878614).

Almost surely, 2^225541213623 is an apocalyptic number.

225541213623 is a deficient number, since it is larger than the sum of its proper divisors (133375873113).

225541213623 is a wasteful number, since it uses less digits than its factorization.

225541213623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22556495 (or 22556492 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 225541213623 in words is "two hundred twenty-five billion, five hundred forty-one million, two hundred thirteen thousand, six hundred twenty-three".