25505063147 has 8 divisors (see below), whose sum is σ = 27333276576. Its totient is φ = 23736791232.

The previous prime is 25505063141. The next prime is 25505063167. The reversal of 25505063147 is 74136050552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25505063147 - 2²⁴ = 25488285931 is a prime.

It is a super-2 number, since 2×25505063147² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25505063147.

It is not an unprimeable number, because it can be changed into a prime (25505063141) 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 7 ways as a sum of consecutive naturals, for example, 14984498 + ... + 14986199.

It is an arithmetic number, because the mean of its divisors is an integer number (3416659572).

Almost surely, 2^25505063147 is an apocalyptic number.

25505063147 is a deficient number, since it is larger than the sum of its proper divisors (1828213429).

25505063147 is a wasteful number, since it uses less digits than its factorization.

25505063147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29970757.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 25505063147 in words is "twenty-five billion, five hundred five million, sixty-three thousand, one hundred forty-seven".