550022040 has 48 divisors (see below), whose sum is σ = 1787572800. Its totient is φ = 146672448.

The previous prime is 550022017. The next prime is 550022041. The reversal of 550022040 is 40220055.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550022041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763560 + ... + 764279.

It is an arithmetic number, because the mean of its divisors is an integer number (37241100).

Almost surely, 2^550022040 is an apocalyptic number.

It is an amenable number.

550022040 is an abundant number, since it is smaller than the sum of its proper divisors (1237550760).

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

550022040 is a wasteful number, since it uses less digits than its factorization.

550022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527856 (or 1527849 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 550022040 is about 23452.5486887886. The cubic root of 550022040 is about 819.3322146004.

Adding to 550022040 its reverse (40220055), we get a palindrome (590242095).

The spelling of 550022040 in words is "five hundred fifty million, twenty-two thousand, forty".