42248565 has 12 divisors (see below), whose sum is σ = 73230924. Its totient is φ = 22532544.

The previous prime is 42248551. The next prime is 42248581. The reversal of 42248565 is 56584224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6140484 + 36108081 = 2478^2 + 6009^2 .

It is not a de Polignac number, because 42248565 - 2¹² = 42244469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469384 + ... + 469473.

It is an arithmetic number, because the mean of its divisors is an integer number (6102577).

Almost surely, 2^42248565 is an apocalyptic number.

42248565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42248565 is a deficient number, since it is larger than the sum of its proper divisors (30982359).

42248565 is a wasteful number, since it uses less digits than its factorization.

42248565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938868 (or 938865 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 42248565 is about 6499.8896144473. The cubic root of 42248565 is about 348.2870451734.

The spelling of 42248565 in words is "forty-two million, two hundred forty-eight thousand, five hundred sixty-five".