22425427 has 2 divisors, whose sum is σ = 22425428. Its totient is φ = 22425426.

The previous prime is 22425383. The next prime is 22425433. The reversal of 22425427 is 72452422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22425427 - 2²³ = 14036819 is a prime.

It is a super-2 number, since 2×22425427² = 1005799552264658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22425395 and 22425404.

It is not a weakly prime, because it can be changed into another prime (22425457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11212713 + 11212714.

It is an arithmetic number, because the mean of its divisors is an integer number (11212714).

Almost surely, 2^22425427 is an apocalyptic number.

22425427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22425427 is an equidigital number, since it uses as much as digits as its factorization.

22425427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 28.

The square root of 22425427 is about 4735.5492817624. The cubic root of 22425427 is about 281.9985706549.

Adding to 22425427 its reverse (72452422), we get a palindrome (94877849).

It can be divided in two parts, 224 and 25427, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 22425427 in words is "twenty-two million, four hundred twenty-five thousand, four hundred twenty-seven".