2531363140 has 72 divisors (see below), whose sum is σ = 5559563520. Its totient is φ = 967863168.

The previous prime is 2531363129. The next prime is 2531363143. The reversal of 2531363140 is 413631352.

It is a junction number, because it is equal to n+sod(n) for n = 2531363099 and 2531363108.

It is not an unprimeable number, because it can be changed into a prime (2531363143) 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 23 ways as a sum of consecutive naturals, for example, 1614637 + ... + 1616203.

It is an arithmetic number, because the mean of its divisors is an integer number (77216160).

Almost surely, 2^2531363140 is an apocalyptic number.

2531363140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531363140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2779781760).

2531363140 is an abundant number, since it is smaller than the sum of its proper divisors (3028200380).

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

2531363140 is a wasteful number, since it uses less digits than its factorization.

2531363140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2531363140 is about 50312.6538755411. The cubic root of 2531363140 is about 1362.8607494104.

Adding to 2531363140 its reverse (413631352), we get a palindrome (2944994492).

The spelling of 2531363140 in words is "two billion, five hundred thirty-one million, three hundred sixty-three thousand, one hundred forty".