42253291 has 2 divisors, whose sum is σ = 42253292. Its totient is φ = 42253290.

The previous prime is 42253259. The next prime is 42253333. The reversal of 42253291 is 19235224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42253291 - 2⁵ = 42253259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42253241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126645 + 21126646.

It is an arithmetic number, because the mean of its divisors is an integer number (21126646).

Almost surely, 2^42253291 is an apocalyptic number.

42253291 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253291 is an equidigital number, since it uses as much as digits as its factorization.

42253291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 42253291 is about 6500.2531489166. The cubic root of 42253291 is about 348.3000313597.

The spelling of 42253291 in words is "forty-two million, two hundred fifty-three thousand, two hundred ninety-one".