51286453 has 4 divisors (see below), whose sum is σ = 53985760. Its totient is φ = 48587148.

The previous prime is 51286451. The next prime is 51286489. The reversal of 51286453 is 35468215.

51286453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35468215 = 5 ⋅7093643.

It is a cyclic number.

It is not a de Polignac number, because 51286453 - 2¹ = 51286451 is a prime.

It is a super-2 number, since 2×51286453² = 5260600522642418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51286451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349625 + ... + 1349662.

It is an arithmetic number, because the mean of its divisors is an integer number (13496440).

Almost surely, 2^51286453 is an apocalyptic number.

It is an amenable number.

51286453 is a deficient number, since it is larger than the sum of its proper divisors (2699307).

51286453 is a wasteful number, since it uses less digits than its factorization.

51286453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699306.

The product of its digits is 28800, while the sum is 34.

The square root of 51286453 is about 7161.4560670299. The cubic root of 51286453 is about 371.5359887895.

The spelling of 51286453 in words is "fifty-one million, two hundred eighty-six thousand, four hundred fifty-three".