25853537277971 has 8 divisors (see below), whose sum is σ = 27843540414144. Its totient is φ = 23863715498880.

The previous prime is 25853537277959. The next prime is 25853537277977. The reversal of 25853537277971 is 17977273535852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25853537277971 is a prime.

It is a super-2 number, since 2×25853537277971² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25853537277895 and 25853537277904.

It is not an unprimeable number, because it can be changed into a prime (25853537277977) 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, 45043115 + ... + 45613476.

It is an arithmetic number, because the mean of its divisors is an integer number (3480442551768).

Almost surely, 2^{25853537277971} is an apocalyptic number.

25853537277971 is a deficient number, since it is larger than the sum of its proper divisors (1990003136173).

25853537277971 is a wasteful number, since it uses less digits than its factorization.

25853537277971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90678541.

The product of its digits is 777924000, while the sum is 71.

The spelling of 25853537277971 in words is "twenty-five trillion, eight hundred fifty-three billion, five hundred thirty-seven million, two hundred seventy-seven thousand, nine hundred seventy-one".