51057155201671 has 4 divisors (see below), whose sum is σ = 51175070110192. Its totient is φ = 50939240293152.

The previous prime is 51057155201669. The next prime is 51057155201743. The reversal of 51057155201671 is 17610255175015.

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 51057155201671 - 2¹ = 51057155201669 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 (51057155201471) 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, 58957453611 + ... + 58957454476.

It is an arithmetic number, because the mean of its divisors is an integer number (12793767527548).

Almost surely, 2^{51057155201671} is an apocalyptic number.

51057155201671 is a deficient number, since it is larger than the sum of its proper divisors (117914908521).

51057155201671 is a wasteful number, since it uses less digits than its factorization.

51057155201671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117914908520.

The product of its (nonzero) digits is 367500, while the sum is 46.

The spelling of 51057155201671 in words is "fifty-one trillion, fifty-seven billion, one hundred fifty-five million, two hundred one thousand, six hundred seventy-one".