53765251 has 2 divisors, whose sum is σ = 53765252. Its totient is φ = 53765250.

The previous prime is 53765213. The next prime is 53765263. The reversal of 53765251 is 15256735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53765251 - 2⁷ = 53765123 is a prime.

It is not a weakly prime, because it can be changed into another prime (53765281) 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, 26882625 + 26882626.

It is an arithmetic number, because the mean of its divisors is an integer number (26882626).

Almost surely, 2^53765251 is an apocalyptic number.

53765251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53765251 is an equidigital number, since it uses as much as digits as its factorization.

53765251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 53765251 is about 7332.4791851051. The cubic root of 53765251 is about 377.4278060268.

The spelling of 53765251 in words is "fifty-three million, seven hundred sixty-five thousand, two hundred fifty-one".