51548271923 has 2 divisors, whose sum is σ = 51548271924. Its totient is φ = 51548271922.

The previous prime is 51548271919. The next prime is 51548271949. The reversal of 51548271923 is 32917284515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51548271923 - 2² = 51548271919 is a prime.

It is not a weakly prime, because it can be changed into another prime (51548271953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25774135961 + 25774135962.

It is an arithmetic number, because the mean of its divisors is an integer number (25774135962).

Almost surely, 2^51548271923 is an apocalyptic number.

51548271923 is a deficient number, since it is larger than the sum of its proper divisors (1).

51548271923 is an equidigital number, since it uses as much as digits as its factorization.

51548271923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The spelling of 51548271923 in words is "fifty-one billion, five hundred forty-eight million, two hundred seventy-one thousand, nine hundred twenty-three".