2003054531 has 4 divisors (see below), whose sum is σ = 2016498000. Its totient is φ = 1989611064.

The previous prime is 2003054497. The next prime is 2003054561. The reversal of 2003054531 is 1354503002.

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

It is a cyclic number.

It is not a de Polignac number, because 2003054531 - 2¹⁸ = 2002792387 is a prime.

It is a super-2 number, since 2×2003054531² = 8024454908319259922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003054497 and 2003054506.

It is not an unprimeable number, because it can be changed into a prime (2003054561) 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, 6721511 + ... + 6721808.

It is an arithmetic number, because the mean of its divisors is an integer number (504124500).

Almost surely, 2^2003054531 is an apocalyptic number.

2003054531 is a deficient number, since it is larger than the sum of its proper divisors (13443469).

2003054531 is a wasteful number, since it uses less digits than its factorization.

2003054531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13443468.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2003054531 is about 44755.4972154260. The cubic root of 2003054531 is about 1260.5621349539.

Adding to 2003054531 its reverse (1354503002), we get a palindrome (3357557533).

The spelling of 2003054531 in words is "two billion, three million, fifty-four thousand, five hundred thirty-one".