51212341 has 4 divisors (see below), whose sum is σ = 52864384. Its totient is φ = 49560300.

The previous prime is 51212333. The next prime is 51212351. The reversal of 51212341 is 14321215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51212341 - 2³ = 51212333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51212311) 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, 825975 + ... + 826036.

It is an arithmetic number, because the mean of its divisors is an integer number (13216096).

Almost surely, 2^51212341 is an apocalyptic number.

It is an amenable number.

51212341 is a deficient number, since it is larger than the sum of its proper divisors (1652043).

51212341 is a wasteful number, since it uses less digits than its factorization.

51212341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652042.

The product of its digits is 240, while the sum is 19.

The square root of 51212341 is about 7156.2798296322. The cubic root of 51212341 is about 371.3569385880.

Adding to 51212341 its reverse (14321215), we get a palindrome (65533556).

The spelling of 51212341 in words is "fifty-one million, two hundred twelve thousand, three hundred forty-one".