25780080530 has 8 divisors (see below), whose sum is σ = 46404144972. Its totient is φ = 10312032208.

The previous prime is 25780080509. The next prime is 25780080577. The reversal of 25780080530 is 3508008752.

It can be written as a sum of positive squares in 2 ways, for example, as 20693110201 + 5086970329 = 143851^2 + 71323^2 .

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

It is a super-2 number, since 2×25780080530² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289004017 + ... + 1289004036.

Almost surely, 2^25780080530 is an apocalyptic number.

25780080530 is a deficient number, since it is larger than the sum of its proper divisors (20624064442).

25780080530 is a wasteful number, since it uses less digits than its factorization.

25780080530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578008060.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 25780080530 in words is "twenty-five billion, seven hundred eighty million, eighty thousand, five hundred thirty".