51731042401 has 8 divisors (see below), whose sum is σ = 52474843008. Its totient is φ = 50987664000.

The previous prime is 51731042399. The next prime is 51731042431. The reversal of 51731042401 is 10424013715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51731042401 - 2¹ = 51731042399 is a prime.

It is a super-2 number, since 2×51731042401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51731042401.

It is not an unprimeable number, because it can be changed into a prime (51731042431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145521 + ... + 353041.

It is an arithmetic number, because the mean of its divisors is an integer number (6559355376).

Almost surely, 2^51731042401 is an apocalyptic number.

It is an amenable number.

51731042401 is a deficient number, since it is larger than the sum of its proper divisors (743800607).

51731042401 is a wasteful number, since it uses less digits than its factorization.

51731042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211103.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 51731042401 in words is "fifty-one billion, seven hundred thirty-one million, forty-two thousand, four hundred one".