51116453 has 2 divisors, whose sum is σ = 51116454. Its totient is φ = 51116452.

The previous prime is 51116431. The next prime is 51116477. The reversal of 51116453 is 35461115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 8514724 = 6527^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 51116453 - 2²⁰ = 50067877 is a prime.

It is a super-2 number, since 2×51116453² = 5225783534602418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51116413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25558226 + 25558227.

It is an arithmetic number, because the mean of its divisors is an integer number (25558227).

Almost surely, 2^51116453 is an apocalyptic number.

It is an amenable number.

51116453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51116453 is an equidigital number, since it uses as much as digits as its factorization.

51116453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 51116453 is about 7149.5771203617. The cubic root of 51116453 is about 371.1250223436.

Adding to 51116453 its reverse (35461115), we get a palindrome (86577568).

The spelling of 51116453 in words is "fifty-one million, one hundred sixteen thousand, four hundred fifty-three".