25214513305503 has 4 divisors (see below), whose sum is σ = 33619351074008. Its totient is φ = 16809675537000.

The previous prime is 25214513305447. The next prime is 25214513305507. The reversal of 25214513305503 is 30550331541252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25214513305503 - 2¹⁶ = 25214513239967 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 (25214513305507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202418884248 + ... + 4202418884253.

It is an arithmetic number, because the mean of its divisors is an integer number (8404837768502).

Almost surely, 2^{25214513305503} is an apocalyptic number.

25214513305503 is a deficient number, since it is larger than the sum of its proper divisors (8404837768505).

25214513305503 is an equidigital number, since it uses as much as digits as its factorization.

25214513305503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404837768504.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 25214513305503 its reverse (30550331541252), we get a palindrome (55764844846755).

The spelling of 25214513305503 in words is "twenty-five trillion, two hundred fourteen billion, five hundred thirteen million, three hundred five thousand, five hundred three".