42326551 has 2 divisors, whose sum is σ = 42326552. Its totient is φ = 42326550.

The previous prime is 42326539. The next prime is 42326569. The reversal of 42326551 is 15562324.

42326551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42326551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42326951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21163275 + 21163276.

It is an arithmetic number, because the mean of its divisors is an integer number (21163276).

Almost surely, 2^42326551 is an apocalyptic number.

42326551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42326551 is an equidigital number, since it uses as much as digits as its factorization.

42326551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 42326551 is about 6505.8858735763. The cubic root of 42326551 is about 348.5012127495.

Adding to 42326551 its reverse (15562324), we get a palindrome (57888875).

The spelling of 42326551 in words is "forty-two million, three hundred twenty-six thousand, five hundred fifty-one".