51034121 has 4 divisors (see below), whose sum is σ = 51072000. Its totient is φ = 50996244.

The previous prime is 51034111. The next prime is 51034129. The reversal of 51034121 is 12143015.

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 a de Polignac number, because none of the positive numbers 2^k-51034121 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 51034121.

It is not an unprimeable number, because it can be changed into a prime (51034129) 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, 16841 + ... + 19638.

It is an arithmetic number, because the mean of its divisors is an integer number (12768000).

Almost surely, 2^51034121 is an apocalyptic number.

It is an amenable number.

51034121 is a deficient number, since it is larger than the sum of its proper divisors (37879).

51034121 is a wasteful number, since it uses less digits than its factorization.

51034121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37878.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51034121 is about 7143.8169769389. The cubic root of 51034121 is about 370.9256613211.

Adding to 51034121 its reverse (12143015), we get a palindrome (63177136).

The spelling of 51034121 in words is "fifty-one million, thirty-four thousand, one hundred twenty-one".