25150400205 has 64 divisors (see below), whose sum is σ = 46230374400. Its totient is φ = 11437251840.

The previous prime is 25150400179. The next prime is 25150400207. The reversal of 25150400205 is 50200405152.

It is a happy number.

It is not a de Polignac number, because 25150400205 - 2¹⁰ = 25150399181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25150400207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24632595 + ... + 24633615.

It is an arithmetic number, because the mean of its divisors is an integer number (722349600).

Almost surely, 2^25150400205 is an apocalyptic number.

It is an amenable number.

25150400205 is a deficient number, since it is larger than the sum of its proper divisors (21079974195).

25150400205 is a wasteful number, since it uses less digits than its factorization.

25150400205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its (nonzero) digits is 2000, while the sum is 24.

Adding to 25150400205 its reverse (50200405152), we get a palindrome (75350805357).

The spelling of 25150400205 in words is "twenty-five billion, one hundred fifty million, four hundred thousand, two hundred five".