42558054 has 64 divisors (see below), whose sum is σ = 106831872. Its totient is φ = 10980000.

The previous prime is 42558037. The next prime is 42558083. The reversal of 42558054 is 45085524.

It is a super-2 number, since 2×42558054² = 3622375920533832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 31 ways as a sum of consecutive naturals, for example, 115779 + ... + 116145.

It is an arithmetic number, because the mean of its divisors is an integer number (1669248).

Almost surely, 2^42558054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42558054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53415936).

42558054 is an abundant number, since it is smaller than the sum of its proper divisors (64273818).

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

42558054 is a wasteful number, since it uses less digits than its factorization.

42558054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 42558054 is about 6523.6534242708. The cubic root of 42558054 is about 349.1354279925.

It can be divided in two parts, 42 and 558054, that added together give a triangular number (558096 = T₁₀₅₆).

The spelling of 42558054 in words is "forty-two million, five hundred fifty-eight thousand, fifty-four".