42255588 has 12 divisors (see below), whose sum is σ = 98596400. Its totient is φ = 14085192.

The previous prime is 42255571. The next prime is 42255589. The reversal of 42255588 is 88555224.

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

It is not an unprimeable number, because it can be changed into a prime (42255589) 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, 1760638 + ... + 1760661.

Almost surely, 2^42255588 is an apocalyptic number.

It is an amenable number.

42255588 is an abundant number, since it is smaller than the sum of its proper divisors (56340812).

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

42255588 is a wasteful number, since it uses less digits than its factorization.

42255588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521306 (or 3521304 counting only the distinct ones).

The product of its digits is 128000, while the sum is 39.

The square root of 42255588 is about 6500.4298319419. The cubic root of 42255588 is about 348.3063427472.

The spelling of 42255588 in words is "forty-two million, two hundred fifty-five thousand, five hundred eighty-eight".