53572261 has 2 divisors, whose sum is σ = 53572262. Its totient is φ = 53572260.

The previous prime is 53572249. The next prime is 53572271. The reversal of 53572261 is 16227535.

53572261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53436100 + 136161 = 7310^2 + 369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53572261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53572231) 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, 26786130 + 26786131.

It is an arithmetic number, because the mean of its divisors is an integer number (26786131).

Almost surely, 2^53572261 is an apocalyptic number.

It is an amenable number.

53572261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53572261 is an equidigital number, since it uses as much as digits as its factorization.

53572261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 53572261 is about 7319.3074125903. The cubic root of 53572261 is about 376.9756731108.

Adding to 53572261 its reverse (16227535), we get a palindrome (69799796).

The spelling of 53572261 in words is "fifty-three million, five hundred seventy-two thousand, two hundred sixty-one".