25240415121105 has 16 divisors (see below), whose sum is σ = 40384801558080. Its totient is φ = 13461508943168.

The previous prime is 25240415121101. The next prime is 25240415121169. The reversal of 25240415121105 is 50112151404252.

It is a cyclic number.

It is not a de Polignac number, because 25240415121105 - 2² = 25240415121101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25240415121101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1956931 + ... + 7369559.

It is an arithmetic number, because the mean of its divisors is an integer number (2524050097380).

Almost surely, 2^{25240415121105} is an apocalyptic number.

It is an amenable number.

25240415121105 is a deficient number, since it is larger than the sum of its proper divisors (15144386436975).

25240415121105 is a wasteful number, since it uses less digits than its factorization.

25240415121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723520.

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 25240415121105 its reverse (50112151404252), we get a palindrome (75352566525357).

The spelling of 25240415121105 in words is "twenty-five trillion, two hundred forty billion, four hundred fifteen million, one hundred twenty-one thousand, one hundred five".