42055451 has 2 divisors, whose sum is σ = 42055452. Its totient is φ = 42055450.

The previous prime is 42055411. The next prime is 42055471. The reversal of 42055451 is 15455024.

42055451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42055451 - 2¹⁸ = 41793307 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42055451.

It is not a weakly prime, because it can be changed into another prime (42055411) 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, 21027725 + 21027726.

It is an arithmetic number, because the mean of its divisors is an integer number (21027726).

Almost surely, 2^42055451 is an apocalyptic number.

42055451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42055451 is an equidigital number, since it uses as much as digits as its factorization.

42055451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 42055451 is about 6485.0174248031. The cubic root of 42055451 is about 347.7555727340.

The spelling of 42055451 in words is "forty-two million, fifty-five thousand, four hundred fifty-one".