2540523503 has 16 divisors (see below), whose sum is σ = 3077020224. Its totient is φ = 2047649280.

The previous prime is 2540523451. The next prime is 2540523521. The reversal of 2540523503 is 3053250452.

It is a cyclic number.

It is not a de Polignac number, because 2540523503 - 2¹² = 2540519407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540523533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131501 + ... + 149577.

It is an arithmetic number, because the mean of its divisors is an integer number (192313764).

Almost surely, 2^2540523503 is an apocalyptic number.

2540523503 is a deficient number, since it is larger than the sum of its proper divisors (536496721).

2540523503 is a wasteful number, since it uses less digits than its factorization.

2540523503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19282.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 2540523503 is about 50403.6060515515. The cubic root of 2540523503 is about 1364.5027198326.

Adding to 2540523503 its reverse (3053250452), we get a palindrome (5593773955).

The spelling of 2540523503 in words is "two billion, five hundred forty million, five hundred twenty-three thousand, five hundred three".