2540250040 has 16 divisors (see below), whose sum is σ = 5715562680. Its totient is φ = 1016100000.

The previous prime is 2540249989. The next prime is 2540250067. The reversal of 2540250040 is 400520452.

2540250040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2540249993 and 2540250020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31753086 + ... + 31753165.

Almost surely, 2^2540250040 is an apocalyptic number.

2540250040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540250040 is an abundant number, since it is smaller than the sum of its proper divisors (3175312640).

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

2540250040 is a wasteful number, since it uses less digits than its factorization.

2540250040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63506262 (or 63506258 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2540250040 is about 50400.8932460527. The cubic root of 2540250040 is about 1364.4537595303.

Adding to 2540250040 its reverse (400520452), we get a palindrome (2940770492).

The spelling of 2540250040 in words is "two billion, five hundred forty million, two hundred fifty thousand, forty".