51475537 has 2 divisors, whose sum is σ = 51475538. Its totient is φ = 51475536.

The previous prime is 51475483. The next prime is 51475549. The reversal of 51475537 is 73557415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40246336 + 11229201 = 6344^2 + 3351^2 .

It is a cyclic number.

It is not a de Polignac number, because 51475537 - 2⁷ = 51475409 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51475496 and 51475505.

It is not a weakly prime, because it can be changed into another prime (51475937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25737768 + 25737769.

It is an arithmetic number, because the mean of its divisors is an integer number (25737769).

Almost surely, 2^51475537 is an apocalyptic number.

It is an amenable number.

51475537 is a deficient number, since it is larger than the sum of its proper divisors (1).

51475537 is an equidigital number, since it uses as much as digits as its factorization.

51475537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 37.

The square root of 51475537 is about 7174.6454267789. The cubic root of 51475537 is about 371.9920244369.

The spelling of 51475537 in words is "fifty-one million, four hundred seventy-five thousand, five hundred thirty-seven".