42023505 has 16 divisors (see below), whose sum is σ = 67340160. Its totient is φ = 22378368.

The previous prime is 42023491. The next prime is 42023521. The reversal of 42023505 is 50532024.

It is not a de Polignac number, because 42023505 - 2⁶ = 42023441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10404 + ... + 13866.

It is an arithmetic number, because the mean of its divisors is an integer number (4208760).

Almost surely, 2^42023505 is an apocalyptic number.

It is an amenable number.

42023505 is a deficient number, since it is larger than the sum of its proper divisors (25316655).

42023505 is a wasteful number, since it uses less digits than its factorization.

42023505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42023505 is about 6482.5538948782. The cubic root of 42023505 is about 347.6674968453.

Adding to 42023505 its reverse (50532024), we get a palindrome (92555529).

The spelling of 42023505 in words is "forty-two million, twenty-three thousand, five hundred five".