25650101051 has 4 divisors (see below), whose sum is σ = 25737644352. Its totient is φ = 25562557752.

The previous prime is 25650100997. The next prime is 25650101083. The reversal of 25650101051 is 15010105652.

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 25650101051 - 2²² = 25645906747 is a prime.

It is a super-2 number, since 2×25650101051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25650101051.

It is not an unprimeable number, because it can be changed into a prime (25650101951) 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, 43771211 + ... + 43771796.

It is an arithmetic number, because the mean of its divisors is an integer number (6434411088).

Almost surely, 2^25650101051 is an apocalyptic number.

25650101051 is a deficient number, since it is larger than the sum of its proper divisors (87543301).

25650101051 is an equidigital number, since it uses as much as digits as its factorization.

25650101051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87543300.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 25650101051 in words is "twenty-five billion, six hundred fifty million, one hundred one thousand, fifty-one".