42523211 has 2 divisors, whose sum is σ = 42523212. Its totient is φ = 42523210.

The previous prime is 42523181. The next prime is 42523219. The reversal of 42523211 is 11232524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42523211 - 2⁶ = 42523147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42523219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21261605 + 21261606.

It is an arithmetic number, because the mean of its divisors is an integer number (21261606).

Almost surely, 2^42523211 is an apocalyptic number.

42523211 is a deficient number, since it is larger than the sum of its proper divisors (1).

42523211 is an equidigital number, since it uses as much as digits as its factorization.

42523211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 42523211 is about 6520.9823646441. The cubic root of 42523211 is about 349.0401209475.

Adding to 42523211 its reverse (11232524), we get a palindrome (53755735).

The spelling of 42523211 in words is "forty-two million, five hundred twenty-three thousand, two hundred eleven".