42555132 has 36 divisors (see below), whose sum is σ = 111556536. Its totient is φ = 14184720.

The previous prime is 42555127. The next prime is 42555169. The reversal of 42555132 is 23155524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42555096 and 42555105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20919 + ... + 22862.

Almost surely, 2^42555132 is an apocalyptic number.

It is an amenable number.

42555132 is an abundant number, since it is smaller than the sum of its proper divisors (69001404).

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

42555132 is a wasteful number, since it uses less digits than its factorization.

42555132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43800 (or 43786 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 42555132 is about 6523.4294661627. The cubic root of 42555132 is about 349.1274373619.

The spelling of 42555132 in words is "forty-two million, five hundred fifty-five thousand, one hundred thirty-two".