550042040 has 16 divisors (see below), whose sum is σ = 1237594680. Its totient is φ = 220016800.

The previous prime is 550042007. The next prime is 550042067. The reversal of 550042040 is 40240055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6875486 + ... + 6875565.

Almost surely, 2^550042040 is an apocalyptic number.

It is an amenable number.

550042040 is an abundant number, since it is smaller than the sum of its proper divisors (687552640).

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

550042040 is a wasteful number, since it uses less digits than its factorization.

550042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751062 (or 13751058 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 550042040 is about 23452.9750778020. The cubic root of 550042040 is about 819.3421453816.

Adding to 550042040 its reverse (40240055), we get a palindrome (590282095).

The spelling of 550042040 in words is "five hundred fifty million, forty-two thousand, forty".