42550023 has 16 divisors (see below), whose sum is σ = 59544576. Its totient is φ = 26975520.

The previous prime is 42550019. The next prime is 42550051. The reversal of 42550023 is 32005524.

It is not a de Polignac number, because 42550023 - 2² = 42550019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42550723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10786 + ... + 14192.

It is an arithmetic number, because the mean of its divisors is an integer number (3721536).

Almost surely, 2^42550023 is an apocalyptic number.

42550023 is a deficient number, since it is larger than the sum of its proper divisors (16994553).

42550023 is a wasteful number, since it uses less digits than its factorization.

42550023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614.

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

The square root of 42550023 is about 6523.0378659027. The cubic root of 42550023 is about 349.1134651853.

Adding to 42550023 its reverse (32005524), we get a palindrome (74555547).

The spelling of 42550023 in words is "forty-two million, five hundred fifty thousand, twenty-three".