42055650 has 216 divisors, whose sum is σ = 141598080. Its totient is φ = 8760960.

The previous prime is 42055649. The next prime is 42055681. The reversal of 42055650 is 5655024.

42055650 is a `hidden beast` number, since 4 + 2 + 0 + 5 + 5 + 650 = 666.

42055650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 532311 + ... + 532389.

Almost surely, 2^42055650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42055650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70799040).

42055650 is an abundant number, since it is smaller than the sum of its proper divisors (99542430).

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

42055650 is a wasteful number, since it uses less digits than its factorization.

42055650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 109 counting only the distinct ones).

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

The square root of 42055650 is about 6485.0327678432. The cubic root of 42055650 is about 347.7561212420.

The spelling of 42055650 in words is "forty-two million, fifty-five thousand, six hundred fifty".