51679510153 has 4 divisors (see below), whose sum is σ = 51680485780. Its totient is φ = 51678534528.

The previous prime is 51679510147. The next prime is 51679510187. The reversal of 51679510153 is 35101597615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13970530809 + 37708979344 = 118197^2 + 194188^2 .

It is a cyclic number.

It is not a de Polignac number, because 51679510153 - 2²⁵ = 51645955721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51679510853) 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, 403500 + ... + 515917.

It is an arithmetic number, because the mean of its divisors is an integer number (12920121445).

Almost surely, 2^51679510153 is an apocalyptic number.

It is an amenable number.

51679510153 is a deficient number, since it is larger than the sum of its proper divisors (975627).

51679510153 is an equidigital number, since it uses as much as digits as its factorization.

51679510153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975626.

The product of its (nonzero) digits is 141750, while the sum is 43.

The spelling of 51679510153 in words is "fifty-one billion, six hundred seventy-nine million, five hundred ten thousand, one hundred fifty-three".