2531782655 has 16 divisors (see below), whose sum is σ = 3075417504. Its totient is φ = 2000668800.

The previous prime is 2531782607. The next prime is 2531782657. The reversal of 2531782655 is 5562871352.

It is not a de Polignac number, because 2531782655 - 2¹⁰ = 2531781631 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 (2531782657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218057 + ... + 229373.

It is an arithmetic number, because the mean of its divisors is an integer number (192213594).

Almost surely, 2^2531782655 is an apocalyptic number.

2531782655 is a deficient number, since it is larger than the sum of its proper divisors (543634849).

2531782655 is a wasteful number, since it uses less digits than its factorization.

2531782655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11866.

The product of its digits is 504000, while the sum is 44.

The square root of 2531782655 is about 50316.8227832402. The cubic root of 2531782655 is about 1362.9360328202.

The spelling of 2531782655 in words is "two billion, five hundred thirty-one million, seven hundred eighty-two thousand, six hundred fifty-five".