52253281 has 2 divisors, whose sum is σ = 52253282. Its totient is φ = 52253280.

The previous prime is 52253251. The next prime is 52253293. The reversal of 52253281 is 18235225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32672656 + 19580625 = 5716^2 + 4425^2 .

It is a cyclic number.

It is not a de Polignac number, because 52253281 - 2⁷ = 52253153 is a prime.

It is a super-2 number, since 2×52253281² = 5460810750529922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52253251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26126640 + 26126641.

It is an arithmetic number, because the mean of its divisors is an integer number (26126641).

Almost surely, 2^52253281 is an apocalyptic number.

It is an amenable number.

52253281 is a deficient number, since it is larger than the sum of its proper divisors (1).

52253281 is an equidigital number, since it uses as much as digits as its factorization.

52253281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 52253281 is about 7228.6430953534. The cubic root of 52253281 is about 373.8561434974.

The spelling of 52253281 in words is "fifty-two million, two hundred fifty-three thousand, two hundred eighty-one".