2531500066 has 8 divisors (see below), whose sum is σ = 3803269824. Its totient is φ = 1263743460.

The previous prime is 2531500063. The next prime is 2531500067. The reversal of 2531500066 is 6600051352.

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

It is not an unprimeable number, because it can be changed into a prime (2531500063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001710 + ... + 1004233.

It is an arithmetic number, because the mean of its divisors is an integer number (475408728).

Almost surely, 2^2531500066 is an apocalyptic number.

2531500066 is a deficient number, since it is larger than the sum of its proper divisors (1271769758).

2531500066 is a wasteful number, since it uses less digits than its factorization.

2531500066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006576.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2531500066 is about 50314.0146082580. The cubic root of 2531500066 is about 1362.8853221664.

The spelling of 2531500066 in words is "two billion, five hundred thirty-one million, five hundred thousand, sixty-six".