51167953 has 2 divisors, whose sum is σ = 51167954. Its totient is φ = 51167952.

The previous prime is 51167951. The next prime is 51167957. The reversal of 51167953 is 35976115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50027329 + 1140624 = 7073^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 51167953 - 2¹ = 51167951 is a prime.

Together with 51167951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51167951) 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, 25583976 + 25583977.

It is an arithmetic number, because the mean of its divisors is an integer number (25583977).

Almost surely, 2^51167953 is an apocalyptic number.

It is an amenable number.

51167953 is a deficient number, since it is larger than the sum of its proper divisors (1).

51167953 is an equidigital number, since it uses as much as digits as its factorization.

51167953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28350, while the sum is 37.

The square root of 51167953 is about 7153.1778252746. The cubic root of 51167953 is about 371.2496170833.

The spelling of 51167953 in words is "fifty-one million, one hundred sixty-seven thousand, nine hundred fifty-three".