225421502439 has 32 divisors (see below), whose sum is σ = 354686054400. Its totient is φ = 124619788800.

The previous prime is 225421502399. The next prime is 225421502441. The reversal of 225421502439 is 934205124522.

It is not a de Polignac number, because 225421502439 - 2⁸ = 225421502183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225421502397 and 225421502406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225421502459) 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, 2203087 + ... + 2303135.

It is an arithmetic number, because the mean of its divisors is an integer number (11083939200).

Almost surely, 2^225421502439 is an apocalyptic number.

225421502439 is a deficient number, since it is larger than the sum of its proper divisors (129264551961).

225421502439 is a wasteful number, since it uses less digits than its factorization.

225421502439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103551.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 225421502439 in words is "two hundred twenty-five billion, four hundred twenty-one million, five hundred two thousand, four hundred thirty-nine".