42755532 has 12 divisors (see below), whose sum is σ = 99762936. Its totient is φ = 14251840.

The previous prime is 42755521. The next prime is 42755533. The reversal of 42755532 is 23555724.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 42755493 and 42755502.

It is not an unprimeable number, because it can be changed into a prime (42755533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781469 + ... + 1781492.

It is an arithmetic number, because the mean of its divisors is an integer number (8313578).

Almost surely, 2^42755532 is an apocalyptic number.

It is an amenable number.

42755532 is an abundant number, since it is smaller than the sum of its proper divisors (57007404).

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

42755532 is a wasteful number, since it uses less digits than its factorization.

42755532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562968 (or 3562966 counting only the distinct ones).

The product of its digits is 42000, while the sum is 33.

The square root of 42755532 is about 6538.7714442394. The cubic root of 42755532 is about 349.6746145987.

The spelling of 42755532 in words is "forty-two million, seven hundred fifty-five thousand, five hundred thirty-two".