25556081314 has 4 divisors (see below), whose sum is σ = 38334121974. Its totient is φ = 12778040656.

The previous prime is 25556081303. The next prime is 25556081321. The reversal of 25556081314 is 41318065552.

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., 25402940689 + 153140625 = 159383^2 + 12375^2 .

It is a super-2 number, since 2×25556081314² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6389020327 + ... + 6389020330.

Almost surely, 2^25556081314 is an apocalyptic number.

25556081314 is a deficient number, since it is larger than the sum of its proper divisors (12778040660).

25556081314 is a wasteful number, since it uses less digits than its factorization.

25556081314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778040659.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 25556081314 in words is "twenty-five billion, five hundred fifty-six million, eighty-one thousand, three hundred fourteen".