25575580508 has 12 divisors (see below), whose sum is σ = 44915420760. Its totient is φ = 12742603152.

The previous prime is 25575580403. The next prime is 25575580529. The reversal of 25575580508 is 80508557552.

It is a super-2 number, since 2×25575580508² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 11295503 + ... + 11297766.

It is an arithmetic number, because the mean of its divisors is an integer number (3742951730).

Almost surely, 2^25575580508 is an apocalyptic number.

It is an amenable number.

25575580508 is a deficient number, since it is larger than the sum of its proper divisors (19339840252).

25575580508 is a wasteful number, since it uses less digits than its factorization.

25575580508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22593556 (or 22593554 counting only the distinct ones).

The product of its (nonzero) digits is 2800000, while the sum is 50.

The spelling of 25575580508 in words is "twenty-five billion, five hundred seventy-five million, five hundred eighty thousand, five hundred eight".