42552011 has 2 divisors, whose sum is σ = 42552012. Its totient is φ = 42552010.

The previous prime is 42551989. The next prime is 42552017. The reversal of 42552011 is 11025524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42552011 - 2⁶ = 42551947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42552017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276005 + 21276006.

It is an arithmetic number, because the mean of its divisors is an integer number (21276006).

Almost surely, 2^42552011 is an apocalyptic number.

42552011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42552011 is an equidigital number, since it uses as much as digits as its factorization.

42552011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 42552011 is about 6523.1902471107. The cubic root of 42552011 is about 349.1189021331.

Adding to 42552011 its reverse (11025524), we get a palindrome (53577535).

The spelling of 42552011 in words is "forty-two million, five hundred fifty-two thousand, eleven".