2530544640 has 704 divisors, whose sum is σ = 9904204800. Its totient is φ = 544997376.

The previous prime is 2530544593. The next prime is 2530544677. The reversal of 2530544640 is 464450352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87260146 + ... + 87260174.

Almost surely, 2^2530544640 is an apocalyptic number.

2530544640 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 2530544640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4952102400).

2530544640 is an abundant number, since it is smaller than the sum of its proper divisors (7373660160).

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

2530544640 is a wasteful number, since it uses less digits than its factorization.

2530544640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 2530544640 is about 50304.5190812913. The cubic root of 2530544640 is about 1362.7138428211.

Adding to 2530544640 its reverse (464450352), we get a palindrome (2994994992).

The spelling of 2530544640 in words is "two billion, five hundred thirty million, five hundred forty-four thousand, six hundred forty".