25545243113401 has 6 divisors (see below), whose sum is σ = 28078655653706. Its totient is φ = 23222948284800.

The previous prime is 25545243113371. The next prime is 25545243113447. The reversal of 25545243113401 is 10431134254552.

It can be written as a sum of positive squares in only one way, i.e., 19627992261801 + 5917250851600 = 4430349^2 + 2432540^2 .

It is not a de Polignac number, because 25545243113401 - 2¹³ = 25545243105209 is a prime.

It is a super-2 number, since 2×25545243113401² (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 (25545243183401) 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, 105558855720 + ... + 105558855961.

Almost surely, 2^{25545243113401} is an apocalyptic number.

It is an amenable number.

25545243113401 is a deficient number, since it is larger than the sum of its proper divisors (2533412540305).

25545243113401 is a wasteful number, since it uses less digits than its factorization.

25545243113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211117711703 (or 211117711692 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 25545243113401 its reverse (10431134254552), we get a palindrome (35976377367953).

The spelling of 25545243113401 in words is "twenty-five trillion, five hundred forty-five billion, two hundred forty-three million, one hundred thirteen thousand, four hundred one".