51480571 has 2 divisors, whose sum is σ = 51480572. Its totient is φ = 51480570.

The previous prime is 51480551. The next prime is 51480577. The reversal of 51480571 is 17508415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51480571 - 2⁹ = 51480059 is a prime.

It is not a weakly prime, because it can be changed into another prime (51480577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25740285 + 25740286.

It is an arithmetic number, because the mean of its divisors is an integer number (25740286).

Almost surely, 2^51480571 is an apocalyptic number.

51480571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51480571 is an equidigital number, since it uses as much as digits as its factorization.

51480571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 51480571 is about 7174.9962369328. The cubic root of 51480571 is about 372.0041502408.

Adding to 51480571 its reverse (17508415), we get a palindrome (68988986).

The spelling of 51480571 in words is "fifty-one million, four hundred eighty thousand, five hundred seventy-one".