1550020045 has 8 divisors (see below), whose sum is σ = 2125741824. Its totient is φ = 1062870864.

The previous prime is 1550020027. The next prime is 1550020051. The reversal of 1550020045 is 5400200551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1550020045 - 2¹⁵ = 1549987277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1550019998 and 1550020025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22143109 + ... + 22143178.

It is an arithmetic number, because the mean of its divisors is an integer number (265717728).

Almost surely, 2^1550020045 is an apocalyptic number.

It is an amenable number.

1550020045 is a deficient number, since it is larger than the sum of its proper divisors (575721779).

1550020045 is an equidigital number, since it uses as much as digits as its factorization.

1550020045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44286299.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 1550020045 is about 39370.2939409906. The cubic root of 1550020045 is about 1157.2995160519.

Adding to 1550020045 its reverse (5400200551), we get a palindrome (6950220596).

The spelling of 1550020045 in words is "one billion, five hundred fifty million, twenty thousand, forty-five".