53289257 has 4 divisors (see below), whose sum is σ = 60902016. Its totient is φ = 45676500.

The previous prime is 53289251. The next prime is 53289283. The reversal of 53289257 is 75298235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53289257 - 2⁴ = 53289241 is a prime.

It is a super-2 number, since 2×53289257² = 5679489823224098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53289251) 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 in 3 ways as a sum of consecutive naturals, for example, 3806369 + ... + 3806382.

It is an arithmetic number, because the mean of its divisors is an integer number (15225504).

Almost surely, 2^53289257 is an apocalyptic number.

It is an amenable number.

53289257 is a deficient number, since it is larger than the sum of its proper divisors (7612759).

53289257 is an equidigital number, since it uses as much as digits as its factorization.

53289257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612758.

The product of its digits is 151200, while the sum is 41.

The square root of 53289257 is about 7299.9491094117. The cubic root of 53289257 is about 376.3106894299.

The spelling of 53289257 in words is "fifty-three million, two hundred eighty-nine thousand, two hundred fifty-seven".