25013052511 has 16 divisors (see below), whose sum is σ = 25757541216. Its totient is φ = 24279463936.

The previous prime is 25013052439. The next prime is 25013052523. The reversal of 25013052511 is 11525031052.

It is a cyclic number.

It is not a de Polignac number, because 25013052511 - 2¹¹ = 25013050463 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 (25013052551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3547956 + ... + 3554998.

It is an arithmetic number, because the mean of its divisors is an integer number (1609846326).

Almost surely, 2^25013052511 is an apocalyptic number.

25013052511 is a deficient number, since it is larger than the sum of its proper divisors (744488705).

25013052511 is a wasteful number, since it uses less digits than its factorization.

25013052511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7802.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 25013052511 its reverse (11525031052), we get a palindrome (36538083563).

The spelling of 25013052511 in words is "twenty-five billion, thirteen million, fifty-two thousand, five hundred eleven".