51113333401 has 8 divisors (see below), whose sum is σ = 56083716360. Its totient is φ = 46291320192.

The previous prime is 51113333393. The next prime is 51113333419. The reversal of 51113333401 is 10433331115.

It can be written as a sum of positive squares in 4 ways, for example, as 2975625 + 51110357776 = 1725^2 + 226076^2 .

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

It is not a de Polignac number, because 51113333401 - 2³ = 51113333393 is a prime.

It is a super-2 number, since 2×51113333401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51113333461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37091716 + ... + 37093093.

It is an arithmetic number, because the mean of its divisors is an integer number (7010464545).

Almost surely, 2^51113333401 is an apocalyptic number.

It is an amenable number.

51113333401 is a deficient number, since it is larger than the sum of its proper divisors (4970382959).

51113333401 is a wasteful number, since it uses less digits than its factorization.

51113333401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74184875.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 51113333401 its reverse (10433331115), we get a palindrome (61546664516).

The spelling of 51113333401 in words is "fifty-one billion, one hundred thirteen million, three hundred thirty-three thousand, four hundred one".