25013434401 has 6 divisors (see below), whose sum is σ = 36130516370. Its totient is φ = 16675622928.

The previous prime is 25013434373. The next prime is 25013434441. The reversal of 25013434401 is 10443431052.

It is a happy number.

25013434401 is a `hidden beast` number, since 250 + 1 + 3 + 4 + 3 + 4 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18769274001 + 6244160400 = 137001^2 + 79020^2 .

It is not a de Polignac number, because 25013434401 - 2⁶ = 25013434337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25013434441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389635236 + ... + 1389635253.

Almost surely, 2^25013434401 is an apocalyptic number.

It is an amenable number.

25013434401 is a deficient number, since it is larger than the sum of its proper divisors (11117081969).

25013434401 is a wasteful number, since it uses less digits than its factorization.

25013434401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779270495 (or 2779270492 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 25013434401 its reverse (10443431052), we get a palindrome (35456865453).

The spelling of 25013434401 in words is "twenty-five billion, thirteen million, four hundred thirty-four thousand, four hundred one".