85456253 has 2 divisors, whose sum is σ = 85456254. Its totient is φ = 85456252.

The previous prime is 85456207. The next prime is 85456279. The reversal of 85456253 is 35265458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 14273284 = 8437^2 + 3778^2 .

It is a cyclic number.

It is not a de Polignac number, because 85456253 - 2¹⁶ = 85390717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85456453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42728126 + 42728127.

It is an arithmetic number, because the mean of its divisors is an integer number (42728127).

Almost surely, 2^85456253 is an apocalyptic number.

It is an amenable number.

85456253 is a deficient number, since it is larger than the sum of its proper divisors (1).

85456253 is an equidigital number, since it uses as much as digits as its factorization.

85456253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 38.

The square root of 85456253 is about 9244.2551349473. The cubic root of 85456253 is about 440.4682566606.

The spelling of 85456253 in words is "eighty-five million, four hundred fifty-six thousand, two hundred fifty-three".