42425263 has 4 divisors (see below), whose sum is σ = 42553768. Its totient is φ = 42296760.

The previous prime is 42425249. The next prime is 42425287. The reversal of 42425263 is 36252424.

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 42425263 - 2¹⁷ = 42294191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42425203) 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, 63756 + ... + 64417.

It is an arithmetic number, because the mean of its divisors is an integer number (10638442).

Almost surely, 2^42425263 is an apocalyptic number.

42425263 is a deficient number, since it is larger than the sum of its proper divisors (128505).

42425263 is a wasteful number, since it uses less digits than its factorization.

42425263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128504.

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

The square root of 42425263 is about 6513.4678167624. The cubic root of 42425263 is about 348.7719218159.

Adding to 42425263 its reverse (36252424), we get a palindrome (78677687).

The spelling of 42425263 in words is "forty-two million, four hundred twenty-five thousand, two hundred sixty-three".