85214953 has 2 divisors, whose sum is σ = 85214954. Its totient is φ = 85214952.

The previous prime is 85214951. The next prime is 85214993. The reversal of 85214953 is 35941258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80514729 + 4700224 = 8973^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 85214953 - 2¹ = 85214951 is a prime.

Together with 85214951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85214951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42607476 + 42607477.

It is an arithmetic number, because the mean of its divisors is an integer number (42607477).

Almost surely, 2^85214953 is an apocalyptic number.

It is an amenable number.

85214953 is a deficient number, since it is larger than the sum of its proper divisors (1).

85214953 is an equidigital number, since it uses as much as digits as its factorization.

85214953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 85214953 is about 9231.1945597523. The cubic root of 85214953 is about 440.0532872790.

The spelling of 85214953 in words is "eighty-five million, two hundred fourteen thousand, nine hundred fifty-three".