42550110 has 80 divisors (see below), whose sum is σ = 115573392. Its totient is φ = 11232000.

The previous prime is 42550061. The next prime is 42550121. The reversal of 42550110 is 1105524.

42550110 is a `hidden beast` number, since 4 + 2 + 550 + 110 = 666.

It is a super-2 number, since 2×42550110² = 3621023722024200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 105910 + ... + 106310.

Almost surely, 2^42550110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42550110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57786696).

42550110 is an abundant number, since it is smaller than the sum of its proper divisors (73023282).

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

42550110 is a wasteful number, since it uses less digits than its factorization.

42550110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 42550110 is about 6523.0445345713. The cubic root of 42550110 is about 349.1137031237.

Adding to 42550110 its reverse (1105524), we get a palindrome (43655634).

The spelling of 42550110 in words is "forty-two million, five hundred fifty thousand, one hundred ten".