225727421523 has 16 divisors (see below), whose sum is σ = 318751483680. Its totient is φ = 141598457856.

The previous prime is 225727421483. The next prime is 225727421527. The reversal of 225727421523 is 325124727522.

225727421523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225727421523 - 2⁹ = 225727421011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225727421527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325390 + ... + 746547.

It is an arithmetic number, because the mean of its divisors is an integer number (19921967730).

Almost surely, 2^225727421523 is an apocalyptic number.

225727421523 is a deficient number, since it is larger than the sum of its proper divisors (93024062157).

225727421523 is a wasteful number, since it uses less digits than its factorization.

225727421523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076086.

The product of its digits is 470400, while the sum is 42.

The spelling of 225727421523 in words is "two hundred twenty-five billion, seven hundred twenty-seven million, four hundred twenty-one thousand, five hundred twenty-three".