2505231403 has 2 divisors, whose sum is σ = 2505231404. Its totient is φ = 2505231402.

The previous prime is 2505231397. The next prime is 2505231433. The reversal of 2505231403 is 3041325052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505231403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505231433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252615701 + 1252615702.

It is an arithmetic number, because the mean of its divisors is an integer number (1252615702).

Almost surely, 2^2505231403 is an apocalyptic number.

2505231403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505231403 is an equidigital number, since it uses as much as digits as its factorization.

2505231403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2505231403 is about 50052.2866910194. The cubic root of 2505231403 is about 1358.1548295657.

Adding to 2505231403 its reverse (3041325052), we get a palindrome (5546556455).

The spelling of 2505231403 in words is "two billion, five hundred five million, two hundred thirty-one thousand, four hundred three".