42255623 has 8 divisors (see below), whose sum is σ = 44841600. Its totient is φ = 39732088.

The previous prime is 42255617. The next prime is 42255637. The reversal of 42255623 is 32655224.

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 42255623 - 2¹⁰ = 42254599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42255223) 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, 14213 + ... + 16926.

It is an arithmetic number, because the mean of its divisors is an integer number (5605200).

Almost surely, 2^42255623 is an apocalyptic number.

42255623 is a deficient number, since it is larger than the sum of its proper divisors (2585977).

42255623 is a wasteful number, since it uses less digits than its factorization.

42255623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31221.

The product of its digits is 14400, while the sum is 29.

The square root of 42255623 is about 6500.4325240710. The cubic root of 42255623 is about 348.3064389137.

The spelling of 42255623 in words is "forty-two million, two hundred fifty-five thousand, six hundred twenty-three".