42251823 has 12 divisors (see below), whose sum is σ = 61498008. Its totient is φ = 27952080.

The previous prime is 42251821. The next prime is 42251831. The reversal of 42251823 is 32815224.

42251823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42251823 - 2¹ = 42251821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16740 + ... + 19097.

It is an arithmetic number, because the mean of its divisors is an integer number (5124834).

Almost surely, 2^42251823 is an apocalyptic number.

42251823 is a deficient number, since it is larger than the sum of its proper divisors (19246185).

42251823 is a wasteful number, since it uses less digits than its factorization.

42251823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35974 (or 35971 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 42251823 is about 6500.1402292566. The cubic root of 42251823 is about 348.2959976670.

The spelling of 42251823 in words is "forty-two million, two hundred fifty-one thousand, eight hundred twenty-three".