2540251505 has 32 divisors (see below), whose sum is σ = 3369309696. Its totient is φ = 1823200000.

The previous prime is 2540251501. The next prime is 2540251541. The reversal of 2540251505 is 5051520452.

2540251505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2540251505 - 2² = 2540251501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540251501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2393675 + ... + 2394735.

It is an arithmetic number, because the mean of its divisors is an integer number (105290928).

Almost surely, 2^2540251505 is an apocalyptic number.

It is an amenable number.

2540251505 is a deficient number, since it is larger than the sum of its proper divisors (829058191).

2540251505 is a wasteful number, since it uses less digits than its factorization.

2540251505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2540251505 is about 50400.9077795232. The cubic root of 2540251505 is about 1364.4540218305.

Adding to 2540251505 its reverse (5051520452), we get a palindrome (7591771957).

The spelling of 2540251505 in words is "two billion, five hundred forty million, two hundred fifty-one thousand, five hundred five".