25211201315203 has 4 divisors (see below), whose sum is σ = 25211644287768. Its totient is φ = 25210758342640.

The previous prime is 25211201315189. The next prime is 25211201315221. The reversal of 25211201315203 is 30251310211252.

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

It is a cyclic number.

It is not a de Polignac number, because 25211201315203 - 2²⁵ = 25211167760771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25211201315243) 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, 221400901 + ... + 221514742.

It is an arithmetic number, because the mean of its divisors is an integer number (6302911071942).

Almost surely, 2^{25211201315203} is an apocalyptic number.

25211201315203 is a deficient number, since it is larger than the sum of its proper divisors (442972565).

25211201315203 is an equidigital number, since it uses as much as digits as its factorization.

25211201315203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442972564.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 25211201315203 its reverse (30251310211252), we get a palindrome (55462511526455).

The spelling of 25211201315203 in words is "twenty-five trillion, two hundred eleven billion, two hundred one million, three hundred fifteen thousand, two hundred three".