2543511040 has 80 divisors (see below), whose sum is σ = 6969723552. Its totient is φ = 872054784.

The previous prime is 2543511001. The next prime is 2543511067. The reversal of 2543511040 is 401153452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2543510996 and 2543511014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53049 + ... + 88888.

Almost surely, 2^2543511040 is an apocalyptic number.

2543511040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543511040 is an abundant number, since it is smaller than the sum of its proper divisors (4426212512).

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

2543511040 is an equidigital number, since it uses as much as digits as its factorization.

2543511040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141967 (or 141951 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2543511040 is about 50433.2334874535. The cubic root of 2543511040 is about 1365.0373741371.

Adding to 2543511040 its reverse (401153452), we get a palindrome (2944664492).

The spelling of 2543511040 in words is "two billion, five hundred forty-three million, five hundred eleven thousand, forty".