25530090969601 has 6 divisors (see below), whose sum is σ = 26440795761302. Its totient is φ = 24649743004320.

The previous prime is 25530090969553. The next prime is 25530090969671. The reversal of 25530090969601 is 10696909003552.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2277008568576 + 23253082401025 = 1508976^2 + 4822145^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25530090969601 is a prime.

It is a super-2 number, since 2×25530090969601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25530090969671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15178412340 + ... + 15178414021.

Almost surely, 2^{25530090969601} is an apocalyptic number.

It is an amenable number.

25530090969601 is a deficient number, since it is larger than the sum of its proper divisors (910704791701).

25530090969601 is an equidigital number, since it uses as much as digits as its factorization.

25530090969601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30356826419 (or 30356826390 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 55.

The spelling of 25530090969601 in words is "twenty-five trillion, five hundred thirty billion, ninety million, nine hundred sixty-nine thousand, six hundred one".