42055361 has 8 divisors (see below), whose sum is σ = 42600360. Its totient is φ = 41513472.

The previous prime is 42055357. The next prime is 42055367. The reversal of 42055361 is 16355024.

It can be written as a sum of positive squares in 4 ways, for example, as 20757136 + 21298225 = 4556^2 + 4615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42055361 - 2² = 42055357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42055361.

It is not an unprimeable number, because it can be changed into a prime (42055367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37931 + ... + 39023.

It is an arithmetic number, because the mean of its divisors is an integer number (5325045).

Almost surely, 2^42055361 is an apocalyptic number.

It is an amenable number.

42055361 is a deficient number, since it is larger than the sum of its proper divisors (544999).

42055361 is a wasteful number, since it uses less digits than its factorization.

42055361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 42055361 is about 6485.0104857278. The cubic root of 42055361 is about 347.7553246645.

The spelling of 42055361 in words is "forty-two million, fifty-five thousand, three hundred sixty-one".