42556854 has 16 divisors (see below), whose sum is σ = 88814592. Its totient is φ = 13568808.

The previous prime is 42556853. The next prime is 42556861. The reversal of 42556854 is 45865524.

It is a super-2 number, since 2×42556854² = 3622171644754632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42556853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154054 + ... + 154329.

It is an arithmetic number, because the mean of its divisors is an integer number (5550912).

Almost surely, 2^42556854 is an apocalyptic number.

42556854 is an abundant number, since it is smaller than the sum of its proper divisors (46257738).

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

42556854 is a wasteful number, since it uses less digits than its factorization.

42556854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308411.

The product of its digits is 192000, while the sum is 39.

The square root of 42556854 is about 6523.5614506188. The cubic root of 42556854 is about 349.1321464637.

The spelling of 42556854 in words is "forty-two million, five hundred fifty-six thousand, eight hundred fifty-four".