225541132400 has 60 divisors (see below), whose sum is σ = 559342039104. Its totient is φ = 87306240000.

The previous prime is 225541132391. The next prime is 225541132447. The reversal of 225541132400 is 4231145522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9082001 + ... + 9106800.

Almost surely, 2^225541132400 is an apocalyptic number.

225541132400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225541132400 is an abundant number, since it is smaller than the sum of its proper divisors (333800906704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225541132400 is a wasteful number, since it uses less digits than its factorization.

225541132400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18188850 (or 18188839 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 225541132400 its reverse (4231145522), we get a palindrome (229772277922).

The spelling of 225541132400 in words is "two hundred twenty-five billion, five hundred forty-one million, one hundred thirty-two thousand, four hundred".