550150040 has 128 divisors (see below), whose sum is σ = 1418342400. Its totient is φ = 190241280.

The previous prime is 550150031. The next prime is 550150049. The reversal of 550150040 is 40051055.

It is an interprime number because it is at equal distance from previous prime (550150031) and next prime (550150049).

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

It is a junction number, because it is equal to n+sod(n) for n = 550149994 and 550150021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550150049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764801 + ... + 765519.

It is an arithmetic number, because the mean of its divisors is an integer number (11080800).

Almost surely, 2^550150040 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 550150040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709171200).

550150040 is an abundant number, since it is smaller than the sum of its proper divisors (868192360).

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

550150040 is a wasteful number, since it uses less digits than its factorization.

550150040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 550150040 is about 23455.2774445326. The cubic root of 550150040 is about 819.3957674410.

The spelling of 550150040 in words is "five hundred fifty million, one hundred fifty thousand, forty".