51362543 has 2 divisors, whose sum is σ = 51362544. Its totient is φ = 51362542.

The previous prime is 51362537. The next prime is 51362573. The reversal of 51362543 is 34526315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51362543 - 2¹⁴ = 51346159 is a prime.

It is a super-2 number, since 2×51362543² = 5276221646853698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51362513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25681271 + 25681272.

It is an arithmetic number, because the mean of its divisors is an integer number (25681272).

Almost surely, 2^51362543 is an apocalyptic number.

51362543 is a deficient number, since it is larger than the sum of its proper divisors (1).

51362543 is an equidigital number, since it uses as much as digits as its factorization.

51362543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 29.

The square root of 51362543 is about 7166.7665651952. The cubic root of 51362543 is about 371.7196383529.

Adding to 51362543 its reverse (34526315), we get a palindrome (85888858).

The spelling of 51362543 in words is "fifty-one million, three hundred sixty-two thousand, five hundred forty-three".