42055524 has 108 divisors (see below), whose sum is σ = 128388624. Its totient is φ = 12002256.

The previous prime is 42055511. The next prime is 42055543. The reversal of 42055524 is 42555024.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47187 + ... + 48069.

Almost surely, 2^42055524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42055524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64194312).

42055524 is an abundant number, since it is smaller than the sum of its proper divisors (86333100).

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

42055524 is a wasteful number, since it uses less digits than its factorization.

42055524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 42055524 is about 6485.0230531587. The cubic root of 42055524 is about 347.7557739457.

Subtracting 42055524 from its reverse (42555024), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 42055524 in words is "forty-two million, fifty-five thousand, five hundred twenty-four".