25005022115513 has 4 divisors (see below), whose sum is σ = 27278205944208. Its totient is φ = 22731838286820.

The previous prime is 25005022115473. The next prime is 25005022115527. The reversal of 25005022115513 is 31551122050052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25005022115513 - 2⁶ = 25005022115449 is a prime.

It is a super-2 number, since 2×25005022115513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25005022115513.

It is not an unprimeable number, because it can be changed into a prime (25005022115813) 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, 1136591914331 + ... + 1136591914352.

It is an arithmetic number, because the mean of its divisors is an integer number (6819551486052).

Almost surely, 2^{25005022115513} is an apocalyptic number.

It is an amenable number.

25005022115513 is a deficient number, since it is larger than the sum of its proper divisors (2273183828695).

25005022115513 is a wasteful number, since it uses less digits than its factorization.

25005022115513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273183828694.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 25005022115513 its reverse (31551122050052), we get a palindrome (56556144165565).

The spelling of 25005022115513 in words is "twenty-five trillion, five billion, twenty-two million, one hundred fifteen thousand, five hundred thirteen".