42055520 has 48 divisors (see below), whose sum is σ = 107004240. Its totient is φ = 15527424.

The previous prime is 42055511. The next prime is 42055543. The reversal of 42055520 is 2555024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8030 + ... + 12189.

It is an arithmetic number, because the mean of its divisors is an integer number (2229255).

Almost surely, 2^42055520 is an apocalyptic number.

42055520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42055520 is an abundant number, since it is smaller than the sum of its proper divisors (64948720).

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

42055520 is a wasteful number, since it uses less digits than its factorization.

42055520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20247 (or 20239 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 42055520 is about 6485.0227447558. The cubic root of 42055520 is about 347.7557629204.

The spelling of 42055520 in words is "forty-two million, fifty-five thousand, five hundred twenty".