42556554 has 24 divisors (see below), whose sum is σ = 92383200. Its totient is φ = 14158248.

The previous prime is 42556499. The next prime is 42556567. The reversal of 42556554 is 45565524.

42556554 is a `hidden beast` number, since 42 + 5 + 565 + 54 = 666.

It is a super-2 number, since 2×42556554² = 3622120576709832, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 8809 + ... + 12755.

It is an arithmetic number, because the mean of its divisors is an integer number (3849300).

Almost surely, 2^42556554 is an apocalyptic number.

42556554 is an abundant number, since it is smaller than the sum of its proper divisors (49826646).

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

42556554 is a wasteful number, since it uses less digits than its factorization.

42556554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554 (or 4551 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 42556554 is about 6523.5384570032. The cubic root of 42556554 is about 349.1313260718.

The spelling of 42556554 in words is "forty-two million, five hundred fifty-six thousand, five hundred fifty-four".