51000125211 has 12 divisors (see below), whose sum is σ = 84190682992. Its totient is φ = 29142928656.

The previous prime is 51000125201. The next prime is 51000125221. The reversal of 51000125211 is 11252100015.

It is an interprime number because it is at equal distance from previous prime (51000125201) and next prime (51000125221).

It is not a de Polignac number, because 51000125211 - 2²³ = 50991736603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51000125201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404762836 + ... + 404762961.

Almost surely, 2^51000125211 is an apocalyptic number.

51000125211 is a deficient number, since it is larger than the sum of its proper divisors (33190557781).

51000125211 is a wasteful number, since it uses less digits than its factorization.

51000125211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809525810 (or 809525807 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 51000125211 its reverse (11252100015), we get a palindrome (62252225226).

The spelling of 51000125211 in words is "fifty-one billion, one hundred twenty-five thousand, two hundred eleven".