22025242 has 4 divisors (see below), whose sum is σ = 33037866. Its totient is φ = 11012620.

The previous prime is 22025233. The next prime is 22025243. The reversal of 22025242 is 24252022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24252022 = 2 ⋅12126011.

It can be written as a sum of positive squares in only one way, i.e., 20259001 + 1766241 = 4501^2 + 1329^2 .

It is a super-2 number, since 2×22025242² = 970222570317128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22025243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506309 + ... + 5506312.

Almost surely, 2^22025242 is an apocalyptic number.

22025242 is a deficient number, since it is larger than the sum of its proper divisors (11012624).

22025242 is a wasteful number, since it uses less digits than its factorization.

22025242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012623.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22025242 is about 4693.1057946737. The cubic root of 22025242 is about 280.3110573737.

Adding to 22025242 its reverse (24252022), we get a palindrome (46277264).

The spelling of 22025242 in words is "twenty-two million, twenty-five thousand, two hundred forty-two".