22052431 has 2 divisors, whose sum is σ = 22052432. Its totient is φ = 22052430.

The previous prime is 22052347. The next prime is 22052453. The reversal of 22052431 is 13425022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22052431 - 2¹⁷ = 21921359 is a prime.

It is a super-2 number, since 2×22052431² = 972619426019522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22052399 and 22052408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22052461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11026215 + 11026216.

It is an arithmetic number, because the mean of its divisors is an integer number (11026216).

Almost surely, 2^22052431 is an apocalyptic number.

22052431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22052431 is an equidigital number, since it uses as much as digits as its factorization.

22052431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22052431 is about 4696.0015971036. The cubic root of 22052431 is about 280.4263530183.

Adding to 22052431 its reverse (13425022), we get a palindrome (35477453).

The spelling of 22052431 in words is "twenty-two million, fifty-two thousand, four hundred thirty-one".