42455533 has 4 divisors (see below), whose sum is σ = 42489468. Its totient is φ = 42421600.

The previous prime is 42455531. The next prime is 42455537. The reversal of 42455533 is 33555424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10227204 + 32228329 = 3198^2 + 5677^2 .

It is a cyclic number.

It is not a de Polignac number, because 42455533 - 2¹ = 42455531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42455495 and 42455504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15016 + ... + 17617.

It is an arithmetic number, because the mean of its divisors is an integer number (10622367).

Almost surely, 2^42455533 is an apocalyptic number.

It is an amenable number.

42455533 is a deficient number, since it is larger than the sum of its proper divisors (33935).

42455533 is a wasteful number, since it uses less digits than its factorization.

42455533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33934.

The product of its digits is 36000, while the sum is 31.

The square root of 42455533 is about 6515.7910494429. The cubic root of 42455533 is about 348.8548505198.

The spelling of 42455533 in words is "forty-two million, four hundred fifty-five thousand, five hundred thirty-three".