42557532 has 24 divisors (see below), whose sum is σ = 99456000. Its totient is φ = 14163696.

The previous prime is 42557509. The next prime is 42557539. The reversal of 42557532 is 23575524.

It is a super-3 number, since 3×42557532³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42557493 and 42557502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42557539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6469 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (4144000).

Almost surely, 2^42557532 is an apocalyptic number.

It is an amenable number.

42557532 is an abundant number, since it is smaller than the sum of its proper divisors (56898468).

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

42557532 is a wasteful number, since it uses less digits than its factorization.

42557532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545 (or 5543 counting only the distinct ones).

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

The square root of 42557532 is about 6523.6134158915. The cubic root of 42557532 is about 349.1340005351.

The spelling of 42557532 in words is "forty-two million, five hundred fifty-seven thousand, five hundred thirty-two".