1550190993 has 16 divisors (see below), whose sum is σ = 2259141696. Its totient is φ = 939723840.

The previous prime is 1550190973. The next prime is 1550191001. The reversal of 1550190993 is 3990910551.

It is not a de Polignac number, because 1550190993 - 2¹⁷ = 1550059921 is a prime.

It is a super-2 number, since 2×1550190993² = 4806184229556652098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1550190913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294018 + ... + 299243.

It is an arithmetic number, because the mean of its divisors is an integer number (141196356).

Almost surely, 2^1550190993 is an apocalyptic number.

1550190993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1550190993 is a deficient number, since it is larger than the sum of its proper divisors (708950703).

1550190993 is a wasteful number, since it uses less digits than its factorization.

1550190993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593344.

The product of its (nonzero) digits is 54675, while the sum is 42.

The square root of 1550190993 is about 39372.4649088675. The cubic root of 1550190993 is about 1157.3420597523.

The spelling of 1550190993 in words is "one billion, five hundred fifty million, one hundred ninety thousand, nine hundred ninety-three".