51268351 has 4 divisors (see below), whose sum is σ = 51286600. Its totient is φ = 51250104.

The previous prime is 51268339. The next prime is 51268387. The reversal of 51268351 is 15386215.

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

It is a cyclic number.

It is not a de Polignac number, because 51268351 - 2¹⁷ = 51137279 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 (51268751) 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, 3921 + ... + 10858.

It is an arithmetic number, because the mean of its divisors is an integer number (12821650).

Almost surely, 2^51268351 is an apocalyptic number.

51268351 is a deficient number, since it is larger than the sum of its proper divisors (18249).

51268351 is a wasteful number, since it uses less digits than its factorization.

51268351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18248.

The product of its digits is 7200, while the sum is 31.

The square root of 51268351 is about 7160.1921063614. The cubic root of 51268351 is about 371.4922713586.

The spelling of 51268351 in words is "fifty-one million, two hundred sixty-eight thousand, three hundred fifty-one".