2531045040 has 40 divisors (see below), whose sum is σ = 7846240368. Its totient is φ = 674945280.

The previous prime is 2531045029. The next prime is 2531045053. The reversal of 2531045040 is 405401352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2531045040.

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 7 ways as a sum of consecutive naturals, for example, 5272771 + ... + 5273250.

Almost surely, 2^2531045040 is an apocalyptic number.

2531045040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531045040 is an abundant number, since it is smaller than the sum of its proper divisors (5315195328).

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

2531045040 is a wasteful number, since it uses less digits than its factorization.

2531045040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546037 (or 10546031 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2531045040 is about 50309.4925436542. The cubic root of 2531045040 is about 1362.8036597264.

Adding to 2531045040 its reverse (405401352), we get a palindrome (2936446392).

The spelling of 2531045040 in words is "two billion, five hundred thirty-one million, forty-five thousand, forty".