51271153 has 2 divisors, whose sum is σ = 51271154. Its totient is φ = 51271152.

The previous prime is 51271127. The next prime is 51271169. The reversal of 51271153 is 35117215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29899024 + 21372129 = 5468^2 + 4623^2 .

It is a cyclic number.

It is not a de Polignac number, because 51271153 - 2¹³ = 51262961 is a prime.

It is a super-2 number, since 2×51271153² = 5257462259898818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51271183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25635576 + 25635577.

It is an arithmetic number, because the mean of its divisors is an integer number (25635577).

Almost surely, 2^51271153 is an apocalyptic number.

It is an amenable number.

51271153 is a deficient number, since it is larger than the sum of its proper divisors (1).

51271153 is an equidigital number, since it uses as much as digits as its factorization.

51271153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 25.

The square root of 51271153 is about 7160.3877688293. The cubic root of 51271153 is about 371.4990390321.

Adding to 51271153 its reverse (35117215), we get a palindrome (86388368).

The spelling of 51271153 in words is "fifty-one million, two hundred seventy-one thousand, one hundred fifty-three".