2004553191 has 4 divisors (see below), whose sum is σ = 2672737592. Its totient is φ = 1336368792.

The previous prime is 2004553183. The next prime is 2004553207. The reversal of 2004553191 is 1913554002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2004553191 - 2³ = 2004553183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004552191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334092196 + ... + 334092201.

It is an arithmetic number, because the mean of its divisors is an integer number (668184398).

Almost surely, 2^2004553191 is an apocalyptic number.

2004553191 is a deficient number, since it is larger than the sum of its proper divisors (668184401).

2004553191 is an equidigital number, since it uses as much as digits as its factorization.

2004553191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668184400.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 2004553191 is about 44772.2368326623. The cubic root of 2004553191 is about 1260.8764354499.

The spelling of 2004553191 in words is "two billion, four million, five hundred fifty-three thousand, one hundred ninety-one".