25374172106 has 4 divisors (see below), whose sum is σ = 38061258162. Its totient is φ = 12687086052.

The previous prime is 25374171983. The next prime is 25374172121. The reversal of 25374172106 is 60127147352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13272192025 + 12101980081 = 115205^2 + 110009^2 .

It is a super-2 number, since 2×25374172106² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25374172106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6343543025 + ... + 6343543028.

Almost surely, 2^25374172106 is an apocalyptic number.

25374172106 is a deficient number, since it is larger than the sum of its proper divisors (12687086056).

25374172106 is a wasteful number, since it uses less digits than its factorization.

25374172106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12687086055.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 25374172106 in words is "twenty-five billion, three hundred seventy-four million, one hundred seventy-two thousand, one hundred six".