2531155205 has 16 divisors (see below), whose sum is σ = 3199080000. Its totient is φ = 1917250560.

The previous prime is 2531155201. The next prime is 2531155217. The reversal of 2531155205 is 5025511352.

It is not a de Polignac number, because 2531155205 - 2² = 2531155201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531155201) 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 in 15 ways as a sum of consecutive naturals, for example, 184421 + ... + 197669.

It is an arithmetic number, because the mean of its divisors is an integer number (199942500).

Almost surely, 2^2531155205 is an apocalyptic number.

It is an amenable number.

2531155205 is a deficient number, since it is larger than the sum of its proper divisors (667924795).

2531155205 is a wasteful number, since it uses less digits than its factorization.

2531155205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15284.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2531155205 is about 50310.5874046408. The cubic root of 2531155205 is about 1362.8234316763.

Adding to 2531155205 its reverse (5025511352), we get a palindrome (7556666557).

The spelling of 2531155205 in words is "two billion, five hundred thirty-one million, one hundred fifty-five thousand, two hundred five".