51110001061 has 8 divisors (see below), whose sum is σ = 58413663360. Its totient is φ = 43806897168.

The previous prime is 51110001053. The next prime is 51110001091. The reversal of 51110001061 is 16010001115.

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 51110001061 - 2³ = 51110001053 is a prime.

It is a super-2 number, since 2×51110001061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51110001001) 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, 79455 + ... + 329443.

It is an arithmetic number, because the mean of its divisors is an integer number (7301707920).

Almost surely, 2^51110001061 is an apocalyptic number.

It is an amenable number.

51110001061 is a deficient number, since it is larger than the sum of its proper divisors (7303662299).

51110001061 is a wasteful number, since it uses less digits than its factorization.

51110001061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279203.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 51110001061 its reverse (16010001115), we get a palindrome (67120002176).

The spelling of 51110001061 in words is "fifty-one billion, one hundred ten million, one thousand, sixty-one".