42625243 has 4 divisors (see below), whose sum is σ = 42638800. Its totient is φ = 42611688.

The previous prime is 42625229. The next prime is 42625259. The reversal of 42625243 is 34252624.

42625243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42625243 - 2⁹ = 42624731 is a prime.

It is a super-2 number, since 2×42625243² = 3633822681618098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42625223) 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 3 ways as a sum of consecutive naturals, for example, 658 + ... + 9256.

It is an arithmetic number, because the mean of its divisors is an integer number (10659700).

Almost surely, 2^42625243 is an apocalyptic number.

42625243 is a deficient number, since it is larger than the sum of its proper divisors (13557).

42625243 is an equidigital number, since it uses as much as digits as its factorization.

42625243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13556.

The product of its digits is 11520, while the sum is 28.

The square root of 42625243 is about 6528.8010384756. The cubic root of 42625243 is about 349.3190651970.

Adding to 42625243 its reverse (34252624), we get a palindrome (76877867).

The spelling of 42625243 in words is "forty-two million, six hundred twenty-five thousand, two hundred forty-three".