51522953 has 2 divisors, whose sum is σ = 51522954. Its totient is φ = 51522952.

The previous prime is 51522929. The next prime is 51522959. The reversal of 51522953 is 35922515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51222649 + 300304 = 7157^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 51522953 - 2¹⁴ = 51506569 is a prime.

It is a super-2 number, since 2×51522953² = 5309229371680418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51522959) 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, 25761476 + 25761477.

It is an arithmetic number, because the mean of its divisors is an integer number (25761477).

Almost surely, 2^51522953 is an apocalyptic number.

It is an amenable number.

51522953 is a deficient number, since it is larger than the sum of its proper divisors (1).

51522953 is an equidigital number, since it uses as much as digits as its factorization.

51522953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 32.

The square root of 51522953 is about 7177.9490803432. The cubic root of 51522953 is about 372.1062078713.

The spelling of 51522953 in words is "fifty-one million, five hundred twenty-two thousand, nine hundred fifty-three".