2531236040 has 16 divisors (see below), whose sum is σ = 5695281180. Its totient is φ = 1012494400.

The previous prime is 2531236027. The next prime is 2531236061. The reversal of 2531236040 is 406321352.

It can be written as a sum of positive squares in 2 ways, for example, as 2323818436 + 207417604 = 48206^2 + 14402^2 .

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 3 ways as a sum of consecutive naturals, for example, 31640411 + ... + 31640490.

Almost surely, 2^2531236040 is an apocalyptic number.

2531236040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531236040 is an abundant number, since it is smaller than the sum of its proper divisors (3164045140).

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

2531236040 is a wasteful number, since it uses less digits than its factorization.

2531236040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63280912 (or 63280908 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2531236040 is about 50311.3907579586. The cubic root of 2531236040 is about 1362.8379392364.

Adding to 2531236040 its reverse (406321352), we get a palindrome (2937557392).

The spelling of 2531236040 in words is "two billion, five hundred thirty-one million, two hundred thirty-six thousand, forty".