2531651630 has 32 divisors (see below), whose sum is σ = 4760251200. Its totient is φ = 967583232.

The previous prime is 2531651627. The next prime is 2531651651. The reversal of 2531651630 is 361561352.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 226616 + ... + 237524.

It is an arithmetic number, because the mean of its divisors is an integer number (148757850).

Almost surely, 2^2531651630 is an apocalyptic number.

2531651630 is a deficient number, since it is larger than the sum of its proper divisors (2228599570).

2531651630 is a wasteful number, since it uses less digits than its factorization.

2531651630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 2531651630 is about 50315.5207664593. The cubic root of 2531651630 is about 1362.9125208264.

The spelling of 2531651630 in words is "two billion, five hundred thirty-one million, six hundred fifty-one thousand, six hundred thirty".