51412211 has 4 divisors (see below), whose sum is σ = 51435000. Its totient is φ = 51389424.

The previous prime is 51412189. The next prime is 51412217. The reversal of 51412211 is 11221415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11221415 = 5 ⋅2244283.

It is a cyclic number.

It is not a de Polignac number, because 51412211 - 2⁶ = 51412147 is a prime.

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 51412211.

It is not an unprimeable number, because it can be changed into a prime (51412217) 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, 7586 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (12858750).

Almost surely, 2^51412211 is an apocalyptic number.

51412211 is a deficient number, since it is larger than the sum of its proper divisors (22789).

51412211 is a wasteful number, since it uses less digits than its factorization.

51412211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22788.

The product of its digits is 80, while the sum is 17.

The square root of 51412211 is about 7170.2308888905. The cubic root of 51412211 is about 371.8394183973.

Adding to 51412211 its reverse (11221415), we get a palindrome (62633626).

The spelling of 51412211 in words is "fifty-one million, four hundred twelve thousand, two hundred eleven".