51527537 has 2 divisors, whose sum is σ = 51527538. Its totient is φ = 51527536.

The previous prime is 51527533. The next prime is 51527573. The reversal of 51527537 is 73572515.

Together with next prime (51527573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 776161 = 7124^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 51527537 - 2² = 51527533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51527497 and 51527506.

It is not a weakly prime, because it can be changed into another prime (51527533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25763768 + 25763769.

It is an arithmetic number, because the mean of its divisors is an integer number (25763769).

Almost surely, 2^51527537 is an apocalyptic number.

It is an amenable number.

51527537 is a deficient number, since it is larger than the sum of its proper divisors (1).

51527537 is an equidigital number, since it uses as much as digits as its factorization.

51527537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36750, while the sum is 35.

The square root of 51527537 is about 7178.2683845061. The cubic root of 51527537 is about 372.1172429808.

The spelling of 51527537 in words is "fifty-one million, five hundred twenty-seven thousand, five hundred thirty-seven".