42045553 has 8 divisors (see below), whose sum is σ = 46036800. Its totient is φ = 38082480.

The previous prime is 42045533. The next prime is 42045581. The reversal of 42045553 is 35554024.

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 42045553 - 2¹³ = 42037361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42045533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853 + ... + 9946.

It is an arithmetic number, because the mean of its divisors is an integer number (5754600).

Almost surely, 2^42045553 is an apocalyptic number.

It is an amenable number.

42045553 is a deficient number, since it is larger than the sum of its proper divisors (3991247).

42045553 is a wasteful number, since it uses less digits than its factorization.

42045553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14087.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 42045553 is about 6484.2542362249. The cubic root of 42045553 is about 347.7282884807.

Adding to 42045553 its reverse (35554024), we get a palindrome (77599577).

The spelling of 42045553 in words is "forty-two million, forty-five thousand, five hundred fifty-three".