51526543 has 2 divisors, whose sum is σ = 51526544. Its totient is φ = 51526542.

The previous prime is 51526511. The next prime is 51526571. The reversal of 51526543 is 34562515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51526543 - 2⁵ = 51526511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51526583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25763271 + 25763272.

It is an arithmetic number, because the mean of its divisors is an integer number (25763272).

Almost surely, 2^51526543 is an apocalyptic number.

51526543 is a deficient number, since it is larger than the sum of its proper divisors (1).

51526543 is an equidigital number, since it uses as much as digits as its factorization.

51526543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 51526543 is about 7178.1991474185. The cubic root of 51526543 is about 372.1148501701.

The spelling of 51526543 in words is "fifty-one million, five hundred twenty-six thousand, five hundred forty-three".