42532785 has 24 divisors (see below), whose sum is σ = 75524904. Its totient is φ = 22129920.

The previous prime is 42532771. The next prime is 42532807. The reversal of 42532785 is 58723524.

42532785 is a `hidden beast` number, since 42 + 532 + 7 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1354896 + 41177889 = 1164^2 + 6417^2 .

It is not a de Polignac number, because 42532785 - 2⁵ = 42532753 is a prime.

It is a congruent number.

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, 9682 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (3146871).

Almost surely, 2^42532785 is an apocalyptic number.

42532785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42532785 is a deficient number, since it is larger than the sum of its proper divisors (32992119).

42532785 is a wasteful number, since it uses less digits than its factorization.

42532785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23105 (or 23102 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 42532785 is about 6521.7164151778. The cubic root of 42532785 is about 349.0663141667.

The spelling of 42532785 in words is "forty-two million, five hundred thirty-two thousand, seven hundred eighty-five".