2531665002 has 16 divisors (see below), whose sum is σ = 5063965632. Its totient is φ = 843782400.

The previous prime is 2531665001. The next prime is 2531665009. The reversal of 2531665002 is 2005661352.

It is not an unprimeable number, because it can be changed into a prime (2531665001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37002 + ... + 80202.

It is an arithmetic number, because the mean of its divisors is an integer number (316497852).

Almost surely, 2^2531665002 is an apocalyptic number.

2531665002 is an abundant number, since it is smaller than the sum of its proper divisors (2532300630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531665002 is a wasteful number, since it uses less digits than its factorization.

2531665002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52973.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2531665002 is about 50315.6536477466. The cubic root of 2531665002 is about 1362.9149204238.

The spelling of 2531665002 in words is "two billion, five hundred thirty-one million, six hundred sixty-five thousand, two".