25106314651 has 4 divisors (see below), whose sum is σ = 27388706904. Its totient is φ = 22823922400.

The previous prime is 25106314643. The next prime is 25106314657. The reversal of 25106314651 is 15641360152.

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

It is a cyclic number.

It is not a de Polignac number, because 25106314651 - 2³ = 25106314643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25106314657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141196110 + ... + 1141196131.

It is an arithmetic number, because the mean of its divisors is an integer number (6847176726).

Almost surely, 2^25106314651 is an apocalyptic number.

25106314651 is a deficient number, since it is larger than the sum of its proper divisors (2282392253).

25106314651 is a wasteful number, since it uses less digits than its factorization.

25106314651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282392252.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 25106314651 in words is "twenty-five billion, one hundred six million, three hundred fourteen thousand, six hundred fifty-one".