2531530542 has 16 divisors (see below), whose sum is σ = 5084248320. Its totient is φ = 840312312.

The previous prime is 2531530517. The next prime is 2531530549. The reversal of 2531530542 is 2450351352.

2531530542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531530549) 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, 881248 + ... + 884115.

It is an arithmetic number, because the mean of its divisors is an integer number (317765520).

Almost surely, 2^2531530542 is an apocalyptic number.

2531530542 is an abundant number, since it is smaller than the sum of its proper divisors (2552717778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531530542 is a wasteful number, since it uses less digits than its factorization.

2531530542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765607.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 2531530542 is about 50314.3174653100. The cubic root of 2531530542 is about 1362.8907912723.

Adding to 2531530542 its reverse (2450351352), we get a palindrome (4981881894).

The spelling of 2531530542 in words is "two billion, five hundred thirty-one million, five hundred thirty thousand, five hundred forty-two".