22025442451 has 8 divisors (see below), whose sum is σ = 22321625600. Its totient is φ = 21729693960.

The previous prime is 22025442419. The next prime is 22025442479. The reversal of 22025442451 is 15424452022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22025442451 - 2⁵ = 22025442419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22025442151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5991 + ... + 209968.

It is an arithmetic number, because the mean of its divisors is an integer number (2790203200).

Almost surely, 2^22025442451 is an apocalyptic number.

22025442451 is a deficient number, since it is larger than the sum of its proper divisors (296183149).

22025442451 is a wasteful number, since it uses less digits than its factorization.

22025442451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217329.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 22025442451 its reverse (15424452022), we get a palindrome (37449894473).

The spelling of 22025442451 in words is "twenty-two billion, twenty-five million, four hundred forty-two thousand, four hundred fifty-one".