2521252503 has 24 divisors (see below), whose sum is σ = 4540438656. Its totient is φ = 1309741200.

The previous prime is 2521252499. The next prime is 2521252553. The reversal of 2521252503 is 3052521252.

It is not a de Polignac number, because 2521252503 - 2² = 2521252499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521252553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1818393 + ... + 1819778.

It is an arithmetic number, because the mean of its divisors is an integer number (189184944).

Almost surely, 2^2521252503 is an apocalyptic number.

2521252503 is a deficient number, since it is larger than the sum of its proper divisors (2019186153).

2521252503 is a wasteful number, since it uses less digits than its factorization.

2521252503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638195 (or 3638192 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2521252503 is about 50212.0752707952. The cubic root of 2521252503 is about 1361.0438394412.

Adding to 2521252503 its reverse (3052521252), we get a palindrome (5573773755).

It can be divided in two parts, 252 and 1252503, that multiplied together give a square (315630756 = 17766²).

The spelling of 2521252503 in words is "two billion, five hundred twenty-one million, two hundred fifty-two thousand, five hundred three".