550001040 has 80 divisors (see below), whose sum is σ = 1713241536. Its totient is φ = 145958400.

The previous prime is 550001027. The next prime is 550001063. The reversal of 550001040 is 40100055.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×550001040² = 605002288002163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45210 + ... + 56070.

Almost surely, 2^550001040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550001040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856620768).

550001040 is an abundant number, since it is smaller than the sum of its proper divisors (1163240496).

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

550001040 is a wasteful number, since it uses less digits than its factorization.

550001040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088 (or 11082 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 550001040 is about 23452.1009719812. The cubic root of 550001040 is about 819.3217870210.

Adding to 550001040 its reverse (40100055), we get a palindrome (590101095).

The spelling of 550001040 in words is "five hundred fifty million, one thousand, forty".