42565300 has 18 divisors (see below), whose sum is σ = 92366918. Its totient is φ = 17026080.

The previous prime is 42565283. The next prime is 42565309. The reversal of 42565300 is 356524.

It can be written as a sum of positive squares in 3 ways, for example, as 6421156 + 36144144 = 2534^2 + 6012^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42565309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212727 + ... + 212926.

Almost surely, 2^42565300 is an apocalyptic number.

It is an amenable number.

42565300 is an abundant number, since it is smaller than the sum of its proper divisors (49801618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42565300 is a wasteful number, since it uses less digits than its factorization.

42565300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425667 (or 425660 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 42565300 is about 6524.2087642871. The cubic root of 42565300 is about 349.1552416471.

The spelling of 42565300 in words is "forty-two million, five hundred sixty-five thousand, three hundred".