51271573 has 2 divisors, whose sum is σ = 51271574. Its totient is φ = 51271572.

The previous prime is 51271567. The next prime is 51271579. The reversal of 51271573 is 37517215.

It is a balanced prime because it is at equal distance from previous prime (51271567) and next prime (51271579).

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 5870929 = 6738^2 + 2423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51271573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51271579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25635786 + 25635787.

It is an arithmetic number, because the mean of its divisors is an integer number (25635787).

Almost surely, 2^51271573 is an apocalyptic number.

It is an amenable number.

51271573 is a deficient number, since it is larger than the sum of its proper divisors (1).

51271573 is an equidigital number, since it uses as much as digits as its factorization.

51271573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 31.

The square root of 51271573 is about 7160.4170967898. The cubic root of 51271573 is about 371.5000534373.

Adding to 51271573 its reverse (37517215), we get a palindrome (88788788).

The spelling of 51271573 in words is "fifty-one million, two hundred seventy-one thousand, five hundred seventy-three".