25214650505 has 16 divisors (see below), whose sum is σ = 33335091648. Its totient is φ = 18156360000.

The previous prime is 25214650501. The next prime is 25214650523. The reversal of 25214650505 is 50505641252.

It is not a de Polignac number, because 25214650505 - 2² = 25214650501 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 (25214650501) 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 15 ways as a sum of consecutive naturals, for example, 2263991 + ... + 2275100.

It is an arithmetic number, because the mean of its divisors is an integer number (2083443228).

Almost surely, 2^25214650505 is an apocalyptic number.

It is an amenable number.

25214650505 is a deficient number, since it is larger than the sum of its proper divisors (8120441143).

25214650505 is a wasteful number, since it uses less digits than its factorization.

25214650505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539208.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 25214650505 in words is "twenty-five billion, two hundred fourteen million, six hundred fifty thousand, five hundred five".