2531615423 has 8 divisors (see below), whose sum is σ = 2681835120. Its totient is φ = 2383093440.

The previous prime is 2531615419. The next prime is 2531615431. The reversal of 2531615423 is 3245161352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2531615423 - 2² = 2531615419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2531615423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531615323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421358 + ... + 427323.

It is an arithmetic number, because the mean of its divisors is an integer number (335229390).

Almost surely, 2^2531615423 is an apocalyptic number.

2531615423 is a deficient number, since it is larger than the sum of its proper divisors (150219697).

2531615423 is a wasteful number, since it uses less digits than its factorization.

2531615423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848857.

The product of its digits is 21600, while the sum is 32.

The square root of 2531615423 is about 50315.1609656573. The cubic root of 2531615423 is about 1362.9060234594.

Adding to 2531615423 its reverse (3245161352), we get a palindrome (5776776775).

The spelling of 2531615423 in words is "two billion, five hundred thirty-one million, six hundred fifteen thousand, four hundred twenty-three".