25395040106 has 8 divisors (see below), whose sum is σ = 38102397060. Its totient is φ = 12694241088.

The previous prime is 25395040087. The next prime is 25395040123. The reversal of 25395040106 is 60104059352.

It can be written as a sum of positive squares in 2 ways, for example, as 24568995025 + 826045081 = 156745^2 + 28741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629791 + ... + 1645298.

Almost surely, 2^25395040106 is an apocalyptic number.

25395040106 is a deficient number, since it is larger than the sum of its proper divisors (12707356954).

25395040106 is a wasteful number, since it uses less digits than its factorization.

25395040106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278968.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 25395040106 its reverse (60104059352), we get a palindrome (85499099458).

The spelling of 25395040106 in words is "twenty-five billion, three hundred ninety-five million, forty thousand, one hundred six".