51541537 has 2 divisors, whose sum is σ = 51541538. Its totient is φ = 51541536.

The previous prime is 51541519. The next prime is 51541549. The reversal of 51541537 is 73514515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33825856 + 17715681 = 5816^2 + 4209^2 .

It is a cyclic number.

It is not a de Polignac number, because 51541537 - 2⁷ = 51541409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51541499 and 51541508.

It is not a weakly prime, because it can be changed into another prime (51541517) 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, 25770768 + 25770769.

It is an arithmetic number, because the mean of its divisors is an integer number (25770769).

Almost surely, 2^51541537 is an apocalyptic number.

It is an amenable number.

51541537 is a deficient number, since it is larger than the sum of its proper divisors (1).

51541537 is an equidigital number, since it uses as much as digits as its factorization.

51541537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 51541537 is about 7179.2434838220. The cubic root of 51541537 is about 372.1509412708.

The spelling of 51541537 in words is "fifty-one million, five hundred forty-one thousand, five hundred thirty-seven".