550055550040 has 32 divisors (see below), whose sum is σ = 1280301714000. Its totient is φ = 212435246464.

The previous prime is 550055550013. The next prime is 550055550041. The reversal of 550055550040 is 40055550055.

It is a super-2 number, since 2×550055550040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550055549978 and 550055550005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550055550041) 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, 237091750 + ... + 237094069.

Almost surely, 2^550055550040 is an apocalyptic number.

It is an amenable number.

550055550040 is an abundant number, since it is smaller than the sum of its proper divisors (730246163960).

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

550055550040 is a wasteful number, since it uses less digits than its factorization.

550055550040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474185859 (or 474185855 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 550055550040 in words is "five hundred fifty billion, fifty-five million, five hundred fifty thousand, forty".