25137650005 has 16 divisors (see below), whose sum is σ = 32491655280. Its totient is φ = 18559715328.

The previous prime is 25137649967. The next prime is 25137650071. The reversal of 25137650005 is 50005673152.

It can be written as a sum of positive squares in 8 ways, for example, as 3352561 + 25134297444 = 1831^2 + 158538^2 .

It is a cyclic number.

It is not a de Polignac number, because 25137650005 - 2¹³ = 25137641813 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 344581 + ... + 411109.

It is an arithmetic number, because the mean of its divisors is an integer number (2030728455).

Almost surely, 2^25137650005 is an apocalyptic number.

It is an amenable number.

25137650005 is a deficient number, since it is larger than the sum of its proper divisors (7354005275).

25137650005 is a wasteful number, since it uses less digits than its factorization.

25137650005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72360.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 25137650005 in words is "twenty-five billion, one hundred thirty-seven million, six hundred fifty thousand, five".