42556452 has 12 divisors (see below), whose sum is σ = 99298416. Its totient is φ = 14185480.

The previous prime is 42556429. The next prime is 42556469. The reversal of 42556452 is 25465524.

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

It is a super-2 number, since 2×42556452² = 3622103213656608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773174 + ... + 1773197.

It is an arithmetic number, because the mean of its divisors is an integer number (8274868).

Almost surely, 2^42556452 is an apocalyptic number.

It is an amenable number.

42556452 is an abundant number, since it is smaller than the sum of its proper divisors (56741964).

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

42556452 is a wasteful number, since it uses less digits than its factorization.

42556452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546378 (or 3546376 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 42556452 is about 6523.5306391555. The cubic root of 42556452 is about 349.1310471377.

The spelling of 42556452 in words is "forty-two million, five hundred fifty-six thousand, four hundred fifty-two".