2542531999 has 8 divisors (see below), whose sum is σ = 2928631808. Its totient is φ = 2162152440.

The previous prime is 2542531973. The next prime is 2542532021. The reversal of 2542531999 is 9991352452.

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

It is not a de Polignac number, because 2542531999 - 2⁹ = 2542531487 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 (2542531909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429107 + ... + 1430884.

It is an arithmetic number, because the mean of its divisors is an integer number (366078976).

Almost surely, 2^2542531999 is an apocalyptic number.

2542531999 is a deficient number, since it is larger than the sum of its proper divisors (386099809).

2542531999 is a wasteful number, since it uses less digits than its factorization.

2542531999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860125.

The product of its digits is 874800, while the sum is 49.

The square root of 2542531999 is about 50423.5262451963. The cubic root of 2542531999 is about 1364.8622095657.

The spelling of 2542531999 in words is "two billion, five hundred forty-two million, five hundred thirty-one thousand, nine hundred ninety-nine".