51248810271 has 32 divisors (see below), whose sum is σ = 70338138112. Its totient is φ = 33172765920.

The previous prime is 51248810269. The next prime is 51248810273. The reversal of 51248810271 is 17201884215.

It is an interprime number because it is at equal distance from previous prime (51248810269) and next prime (51248810273).

It is not a de Polignac number, because 51248810271 - 2¹ = 51248810269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51248810273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18282156 + ... + 18284958.

It is an arithmetic number, because the mean of its divisors is an integer number (2198066816).

Almost surely, 2^51248810271 is an apocalyptic number.

51248810271 is a deficient number, since it is larger than the sum of its proper divisors (19089327841).

51248810271 is a wasteful number, since it uses less digits than its factorization.

51248810271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 51248810271 in words is "fifty-one billion, two hundred forty-eight million, eight hundred ten thousand, two hundred seventy-one".