42563385 has 24 divisors (see below), whose sum is σ = 73941504. Its totient is φ = 22649760.

The previous prime is 42563377. The next prime is 42563419. The reversal of 42563385 is 58336524.

It is a happy number.

It is not a de Polignac number, because 42563385 - 2³ = 42563377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28200 + ... + 29670.

It is an arithmetic number, because the mean of its divisors is an integer number (3080896).

Almost surely, 2^42563385 is an apocalyptic number.

42563385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42563385 is a deficient number, since it is larger than the sum of its proper divisors (31378119).

42563385 is a wasteful number, since it uses less digits than its factorization.

42563385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2122 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 42563385 is about 6524.0620015447. The cubic root of 42563385 is about 349.1500054390.

The spelling of 42563385 in words is "forty-two million, five hundred sixty-three thousand, three hundred eighty-five".