53562251 has 2 divisors, whose sum is σ = 53562252. Its totient is φ = 53562250.

The previous prime is 53562233. The next prime is 53562263. The reversal of 53562251 is 15226535.

It is a happy number.

53562251 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53562251 is a prime.

It is a Chen prime.

It is equal to p_3201599 and since 53562251 and 3201599 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53562211) 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, 26781125 + 26781126.

It is an arithmetic number, because the mean of its divisors is an integer number (26781126).

Almost surely, 2^53562251 is an apocalyptic number.

53562251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53562251 is an equidigital number, since it uses as much as digits as its factorization.

53562251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 53562251 is about 7318.6235727765. The cubic root of 53562251 is about 376.9521922927.

Adding to 53562251 its reverse (15226535), we get a palindrome (68788786).

The spelling of 53562251 in words is "fifty-three million, five hundred sixty-two thousand, two hundred fifty-one".