22025881 has 8 divisors (see below), whose sum is σ = 23030784. Its totient is φ = 21024960.

The previous prime is 22025879. The next prime is 22025893. The reversal of 22025881 is 18852022.

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 22025881 - 2¹ = 22025879 is a prime.

It is a super-2 number, since 2×22025881² = 970278867652322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22025831) 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, 19720 + ... + 20806.

It is an arithmetic number, because the mean of its divisors is an integer number (2878848).

Almost surely, 2^22025881 is an apocalyptic number.

It is an amenable number.

22025881 is a deficient number, since it is larger than the sum of its proper divisors (1004903).

22025881 is a wasteful number, since it uses less digits than its factorization.

22025881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 22025881 is about 4693.1738727646. The cubic root of 22025881 is about 280.3137681578.

It can be divided in two parts, 22025 and 881, that multiplied together give a square (19404025 = 4405²).

The spelling of 22025881 in words is "twenty-two million, twenty-five thousand, eight hundred eighty-one".