42755023 has 4 divisors (see below), whose sum is σ = 42770448. Its totient is φ = 42739600.

The previous prime is 42755003. The next prime is 42755033. The reversal of 42755023 is 32055724.

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

It is a cyclic number.

It is not a de Polignac number, because 42755023 - 2⁹ = 42754511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42754982 and 42755000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42755003) 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, 2278 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (10692612).

Almost surely, 2^42755023 is an apocalyptic number.

42755023 is a deficient number, since it is larger than the sum of its proper divisors (15425).

42755023 is a wasteful number, since it uses less digits than its factorization.

42755023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15424.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 42755023 is about 6538.7325224389. The cubic root of 42755023 is about 349.6732269803.

The spelling of 42755023 in words is "forty-two million, seven hundred fifty-five thousand, twenty-three".