51348291 has 4 divisors (see below), whose sum is σ = 68464392. Its totient is φ = 34232192.

The previous prime is 51348223. The next prime is 51348293. The reversal of 51348291 is 19284315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51348291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51348293) 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, 8558046 + ... + 8558051.

It is an arithmetic number, because the mean of its divisors is an integer number (17116098).

Almost surely, 2^51348291 is an apocalyptic number.

51348291 is a deficient number, since it is larger than the sum of its proper divisors (17116101).

51348291 is a wasteful number, since it uses less digits than its factorization.

51348291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17116100.

The product of its digits is 8640, while the sum is 33.

The square root of 51348291 is about 7165.7721844893. The cubic root of 51348291 is about 371.6852537732.

The spelling of 51348291 in words is "fifty-one million, three hundred forty-eight thousand, two hundred ninety-one".