53525287 has 2 divisors, whose sum is σ = 53525288. Its totient is φ = 53525286.

The previous prime is 53525257. The next prime is 53525309. The reversal of 53525287 is 78252535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53525287 - 2¹⁵ = 53492519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53525257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26762643 + 26762644.

It is an arithmetic number, because the mean of its divisors is an integer number (26762644).

Almost surely, 2^53525287 is an apocalyptic number.

53525287 is a deficient number, since it is larger than the sum of its proper divisors (1).

53525287 is an equidigital number, since it uses as much as digits as its factorization.

53525287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 37.

The square root of 53525287 is about 7316.0977986902. The cubic root of 53525287 is about 376.8654591485.

It can be divided in two parts, 5352528 and 7, that added together give a palindrome (5352535).

The spelling of 53525287 in words is "fifty-three million, five hundred twenty-five thousand, two hundred eighty-seven".