42054487 has 2 divisors, whose sum is σ = 42054488. Its totient is φ = 42054486.

The previous prime is 42054461. The next prime is 42054499. The reversal of 42054487 is 78445024.

It is a happy number.

42054487 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 a de Polignac number, because none of the positive numbers 2^k-42054487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42054407) 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, 21027243 + 21027244.

It is an arithmetic number, because the mean of its divisors is an integer number (21027244).

Almost surely, 2^42054487 is an apocalyptic number.

42054487 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054487 is an equidigital number, since it uses as much as digits as its factorization.

42054487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 42054487 is about 6484.9430992107. The cubic root of 42054487 is about 347.7529156157.

The spelling of 42054487 in words is "forty-two million, fifty-four thousand, four hundred eighty-seven".