42566524 is nontrivially palindromic in base 10.
It is a self number, because there is not a number n which added to its sum of digits gives 42566524.
It is a congruent number.
Almost surely, 242566524 is an apocalyptic number.
42566524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42566524 is a wasteful number, since it uses less digits than its factorization.
42566524 is an evil number, because the sum of its binary digits is even.
The square root of 42566524 is about 6524.3025680911. The cubic root of 42566524 is about 349.1585883632.
The spelling of 42566524 in words is "forty-two million, five hundred sixty-six thousand, five hundred twenty-four".