51345311 has 8 divisors (see below), whose sum is σ = 52673280. Its totient is φ = 50023512.

The previous prime is 51345299. The next prime is 51345317. The reversal of 51345311 is 11354315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51345311 - 2¹⁰ = 51344287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18620 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (6584160).

Almost surely, 2^51345311 is an apocalyptic number.

51345311 is a deficient number, since it is larger than the sum of its proper divisors (1327969).

51345311 is a wasteful number, since it uses less digits than its factorization.

51345311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its digits is 900, while the sum is 23.

The square root of 51345311 is about 7165.5642485432. The cubic root of 51345311 is about 371.6780633782.

Adding to 51345311 its reverse (11354315), we get a palindrome (62699626).

The spelling of 51345311 in words is "fifty-one million, three hundred forty-five thousand, three hundred eleven".