42556983 has 8 divisors (see below), whose sum is σ = 64848768. Its totient is φ = 24318264.

The previous prime is 42556963. The next prime is 42556999. The reversal of 42556983 is 38965524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42556983 - 2¹⁰ = 42555959 is a prime.

It is a super-2 number, since 2×42556983² = 3622193604124578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42556963) 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, 1013241 + ... + 1013282.

It is an arithmetic number, because the mean of its divisors is an integer number (8106096).

Almost surely, 2^42556983 is an apocalyptic number.

42556983 is a deficient number, since it is larger than the sum of its proper divisors (22291785).

42556983 is a wasteful number, since it uses less digits than its factorization.

42556983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026533.

The product of its digits is 259200, while the sum is 42.

The square root of 42556983 is about 6523.5713378486. The cubic root of 42556983 is about 349.1324992310.

The spelling of 42556983 in words is "forty-two million, five hundred fifty-six thousand, nine hundred eighty-three".