51136363 has 4 divisors (see below), whose sum is σ = 51663640. Its totient is φ = 50609088.

The previous prime is 51136339. The next prime is 51136381. The reversal of 51136363 is 36363115.

51136363 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.

It is a cyclic number.

It is not a de Polignac number, because 51136363 - 2¹³ = 51128171 is a prime.

It is a super-2 number, since 2×51136363² = 5229855241735538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51116363) 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, 263493 + ... + 263686.

It is an arithmetic number, because the mean of its divisors is an integer number (12915910).

Almost surely, 2^51136363 is an apocalyptic number.

51136363 is a deficient number, since it is larger than the sum of its proper divisors (527277).

51136363 is an equidigital number, since it uses as much as digits as its factorization.

51136363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527276.

The product of its digits is 4860, while the sum is 28.

The square root of 51136363 is about 7150.9693748470. The cubic root of 51136363 is about 371.1732008303.

Adding to 51136363 its reverse (36363115), we get a palindrome (87499478).

It can be divided in two parts, 5113 and 6363, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 51136363 in words is "fifty-one million, one hundred thirty-six thousand, three hundred sixty-three".