51525949 has 2 divisors, whose sum is σ = 51525950. Its totient is φ = 51525948.

The previous prime is 51525931. The next prime is 51525973. The reversal of 51525949 is 94952515.

51525949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 3667225 = 6918^2 + 1915^2 .

It is a cyclic number.

It is not a de Polignac number, because 51525949 - 2⁵ = 51525917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51525979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25762974 + 25762975.

It is an arithmetic number, because the mean of its divisors is an integer number (25762975).

Almost surely, 2^51525949 is an apocalyptic number.

It is an amenable number.

51525949 is a deficient number, since it is larger than the sum of its proper divisors (1).

51525949 is an equidigital number, since it uses as much as digits as its factorization.

51525949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 40.

The square root of 51525949 is about 7178.1577720192. The cubic root of 51525949 is about 372.1134202464.

The spelling of 51525949 in words is "fifty-one million, five hundred twenty-five thousand, nine hundred forty-nine".