42206550 has 48 divisors (see below), whose sum is σ = 106667280. Its totient is φ = 11040640.

The previous prime is 42206533. The next prime is 42206551. The reversal of 42206550 is 5560224.

42206550 = T₁₅₉ + T₁₆₀ + ... + T₆₃₅.

It is a self number, because there is not a number n which added to its sum of digits gives 42206550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42206551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5296 + ... + 10604.

It is an arithmetic number, because the mean of its divisors is an integer number (2222235).

Almost surely, 2^42206550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42206550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53333640).

42206550 is an abundant number, since it is smaller than the sum of its proper divisors (64460730).

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

42206550 is a wasteful number, since it uses less digits than its factorization.

42206550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5372 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42206550 is about 6496.6568325563. The cubic root of 42206550 is about 348.1715530166.

Adding to 42206550 its reverse (5560224), we get a palindrome (47766774).

The spelling of 42206550 in words is "forty-two million, two hundred six thousand, five hundred fifty".