25480503656 has 8 divisors (see below), whose sum is σ = 47775944370. Its totient is φ = 12740251824.

The previous prime is 25480503647. The next prime is 25480503667. The reversal of 25480503656 is 65630508452.

It can be written as a sum of positive squares in only one way, i.e., 22280338756 + 3200164900 = 149266^2 + 56570^2 .

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

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 as a sum of consecutive naturals, namely, 1592531471 + ... + 1592531486.

Almost surely, 2^25480503656 is an apocalyptic number.

It is an amenable number.

25480503656 is a deficient number, since it is larger than the sum of its proper divisors (22295440714).

25480503656 is a wasteful number, since it uses less digits than its factorization.

25480503656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185062963 (or 3185062959 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 25480503656 in words is "twenty-five billion, four hundred eighty million, five hundred three thousand, six hundred fifty-six".