25656913051 has 8 divisors (see below), whose sum is σ = 31987839744. Its totient is φ = 19992399720.

The previous prime is 25656913039. The next prime is 25656913063. The reversal of 25656913051 is 15031965652.

It is an interprime number because it is at equal distance from previous prime (25656913039) and next prime (25656913063).

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

It is a cyclic number.

It is not a de Polignac number, because 25656913051 - 2¹³ = 25656904859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25656912989 and 25656913007.

It is not an unprimeable number, because it can be changed into a prime (25656113051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166603255 + ... + 166603408.

It is an arithmetic number, because the mean of its divisors is an integer number (3998479968).

Almost surely, 2^25656913051 is an apocalyptic number.

25656913051 is a deficient number, since it is larger than the sum of its proper divisors (6330926693).

25656913051 is a wasteful number, since it uses less digits than its factorization.

25656913051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333206681.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 25656913051 in words is "twenty-five billion, six hundred fifty-six million, nine hundred thirteen thousand, fifty-one".