25050000005 has 32 divisors (see below), whose sum is σ = 31833734400. Its totient is φ = 18884067840.

The previous prime is 25049999963. The next prime is 25050000013. The reversal of 25050000005 is 50000005052.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-25050000005 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12851771 + ... + 12853719.

It is an arithmetic number, because the mean of its divisors is an integer number (994804200).

Almost surely, 2^25050000005 is an apocalyptic number.

It is an amenable number.

25050000005 is a deficient number, since it is larger than the sum of its proper divisors (6783734395).

25050000005 is a wasteful number, since it uses less digits than its factorization.

25050000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581.

The product of its (nonzero) digits is 250, while the sum is 17.

Adding to 25050000005 its reverse (50000005052), we get a palindrome (75050005057).

The spelling of 25050000005 in words is "twenty-five billion, fifty million, five", and thus it is an aban number and an uban number.