25123200105 has 16 divisors (see below), whose sum is σ = 41583228480. Its totient is φ = 12937003968.

The previous prime is 25123200103. The next prime is 25123200187. The reversal of 25123200105 is 50100232152.

It is not a de Polignac number, because 25123200105 - 2¹ = 25123200103 is a prime.

It is a super-2 number, since 2×25123200105² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25123200101) 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, 28876807 + ... + 28877676.

It is an arithmetic number, because the mean of its divisors is an integer number (2598951780).

Almost surely, 2^25123200105 is an apocalyptic number.

It is an amenable number.

25123200105 is a deficient number, since it is larger than the sum of its proper divisors (16460028375).

25123200105 is a wasteful number, since it uses less digits than its factorization.

25123200105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57754520.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 25123200105 its reverse (50100232152), we get a palindrome (75223432257).

The spelling of 25123200105 in words is "twenty-five billion, one hundred twenty-three million, two hundred thousand, one hundred five".