2531013542 has 4 divisors (see below), whose sum is σ = 3796520316. Its totient is φ = 1265506770.

The previous prime is 2531013523. The next prime is 2531013547. The reversal of 2531013542 is 2453101352.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531013547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632753384 + ... + 632753387.

It is an arithmetic number, because the mean of its divisors is an integer number (949130079).

Almost surely, 2^2531013542 is an apocalyptic number.

2531013542 is a deficient number, since it is larger than the sum of its proper divisors (1265506774).

2531013542 is a wasteful number, since it uses less digits than its factorization.

2531013542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265506773.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2531013542 is about 50309.1795003655. The cubic root of 2531013542 is about 1362.7980064926.

Adding to 2531013542 its reverse (2453101352), we get a palindrome (4984114894).

The spelling of 2531013542 in words is "two billion, five hundred thirty-one million, thirteen thousand, five hundred forty-two".