51656026027 has 4 divisors (see below), whose sum is σ = 51656650776. Its totient is φ = 51655401280.

The previous prime is 51656025991. The next prime is 51656026049. The reversal of 51656026027 is 72062065615.

51656026027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51656026027 - 2⁷ = 51656025899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51656026057) 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, 165253 + ... + 361414.

It is an arithmetic number, because the mean of its divisors is an integer number (12914162694).

Almost surely, 2^51656026027 is an apocalyptic number.

51656026027 is a deficient number, since it is larger than the sum of its proper divisors (624749).

51656026027 is an equidigital number, since it uses as much as digits as its factorization.

51656026027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624748.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 51656026027 in words is "fifty-one billion, six hundred fifty-six million, twenty-six thousand, twenty-seven".