25801480548 has 36 divisors (see below), whose sum is σ = 65245797708. Its totient is φ = 8597145600.

The previous prime is 25801480469. The next prime is 25801480561. The reversal of 25801480548 is 84508410852.

25801480548 is a `hidden beast` number, since 2 + 580 + 14 + 8 + 0 + 54 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6529932864 + 19271547684 = 80808^2 + 138822^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44853 + ... + 231548.

Almost surely, 2^25801480548 is an apocalyptic number.

It is an amenable number.

25801480548 is an abundant number, since it is smaller than the sum of its proper divisors (39444317160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25801480548 is a wasteful number, since it uses less digits than its factorization.

25801480548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279004 (or 278999 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 45.

The spelling of 25801480548 in words is "twenty-five billion, eight hundred one million, four hundred eighty thousand, five hundred forty-eight".