25530525254890 has 8 divisors (see below), whose sum is σ = 45954945458820. Its totient is φ = 10212210101952.

The previous prime is 25530525254833. The next prime is 25530525254891. The reversal of 25530525254890 is 9845252503552.

It can be written as a sum of positive squares in 2 ways, for example, as 24208436922849 + 1322088332041 = 4920207^2 + 1149821^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25530525254891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276526262735 + ... + 1276526262754.

Almost surely, 2^{25530525254890} is an apocalyptic number.

25530525254890 is a deficient number, since it is larger than the sum of its proper divisors (20424420203930).

25530525254890 is a wasteful number, since it uses less digits than its factorization.

25530525254890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553052525496.

The product of its (nonzero) digits is 21600000, while the sum is 55.

The spelling of 25530525254890 in words is "twenty-five trillion, five hundred thirty billion, five hundred twenty-five million, two hundred fifty-four thousand, eight hundred ninety".