42552311 has 2 divisors, whose sum is σ = 42552312. Its totient is φ = 42552310.

The previous prime is 42552299. The next prime is 42552313. The reversal of 42552311 is 11325524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42552311 - 2⁶ = 42552247 is a prime.

Together with 42552313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42552313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276155 + 21276156.

It is an arithmetic number, because the mean of its divisors is an integer number (21276156).

Almost surely, 2^42552311 is an apocalyptic number.

42552311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42552311 is an equidigital number, since it uses as much as digits as its factorization.

42552311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 42552311 is about 6523.2132419537. The cubic root of 42552311 is about 349.1197225833.

Adding to 42552311 its reverse (11325524), we get a palindrome (53877835).

The spelling of 42552311 in words is "forty-two million, five hundred fifty-two thousand, three hundred eleven".