25530611250101 has 32 divisors (see below), whose sum is σ = 26855222008320. Its totient is φ = 24242518273536.

The previous prime is 25530611250061. The next prime is 25530611250103. The reversal of 25530611250101 is 10105211603552.

It is a cyclic number.

It is not a de Polignac number, because 25530611250101 - 2²² = 25530607055797 is a prime.

It is a super-2 number, since 2×25530611250101² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530611250103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997705415 + ... + 997731003.

It is an arithmetic number, because the mean of its divisors is an integer number (839225687760).

Almost surely, 2^{25530611250101} is an apocalyptic number.

It is an amenable number.

25530611250101 is a deficient number, since it is larger than the sum of its proper divisors (1324610758219).

25530611250101 is a wasteful number, since it uses less digits than its factorization.

25530611250101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27293.

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 25530611250101 its reverse (10105211603552), we get a palindrome (35635822853653).

The spelling of 25530611250101 in words is "twenty-five trillion, five hundred thirty billion, six hundred eleven million, two hundred fifty thousand, one hundred one".