42555660 has 48 divisors (see below), whose sum is σ = 136179456. Its totient is φ = 9726912.

The previous prime is 42555659. The next prime is 42555701. The reversal of 42555660 is 6655524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50242 + ... + 51081.

It is an arithmetic number, because the mean of its divisors is an integer number (2837072).

Almost surely, 2^42555660 is an apocalyptic number.

It is an amenable number.

42555660 is an abundant number, since it is smaller than the sum of its proper divisors (93623796).

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

42555660 is a wasteful number, since it uses less digits than its factorization.

42555660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101342 (or 101340 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 42555660 is about 6523.4699355481. The cubic root of 42555660 is about 349.1288812812.

The spelling of 42555660 in words is "forty-two million, five hundred fifty-five thousand, six hundred sixty".