25359468488 has 8 divisors (see below), whose sum is σ = 47549003430. Its totient is φ = 12679734240.

The previous prime is 25359468487. The next prime is 25359468509. The reversal of 25359468488 is 88486495352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18589140964 + 6770327524 = 136342^2 + 82282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×25359468488² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25359468488.

It is not an unprimeable number, because it can be changed into a prime (25359468487) 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 as a sum of consecutive naturals, namely, 1584966773 + ... + 1584966788.

Almost surely, 2^25359468488 is an apocalyptic number.

It is an amenable number.

25359468488 is a deficient number, since it is larger than the sum of its proper divisors (22189534942).

25359468488 is a wasteful number, since it uses less digits than its factorization.

25359468488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169933567 (or 3169933563 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 62.

The spelling of 25359468488 in words is "twenty-five billion, three hundred fifty-nine million, four hundred sixty-eight thousand, four hundred eighty-eight".