51537529 has 2 divisors, whose sum is σ = 51537530. Its totient is φ = 51537528.

The previous prime is 51537511. The next prime is 51537547. The reversal of 51537529 is 92573515.

It is a happy number.

51537529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (51537511) and next prime (51537547).

It can be written as a sum of positive squares in only one way, i.e., 49674304 + 1863225 = 7048^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 51537529 - 2⁷ = 51537401 is a prime.

It is a super-2 number, since 2×51537529² = 5312233790851682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51537569) 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 as a sum of consecutive naturals, namely, 25768764 + 25768765.

It is an arithmetic number, because the mean of its divisors is an integer number (25768765).

Almost surely, 2^51537529 is an apocalyptic number.

It is an amenable number.

51537529 is a deficient number, since it is larger than the sum of its proper divisors (1).

51537529 is an equidigital number, since it uses as much as digits as its factorization.

51537529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250, while the sum is 37.

The square root of 51537529 is about 7178.9643403488. The cubic root of 51537529 is about 372.1412945552.

The spelling of 51537529 in words is "fifty-one million, five hundred thirty-seven thousand, five hundred twenty-nine".