85233251 has 2 divisors, whose sum is σ = 85233252. Its totient is φ = 85233250.

The previous prime is 85233227. The next prime is 85233277. The reversal of 85233251 is 15233258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85233251 - 2¹⁴ = 85216867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (85233151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42616625 + 42616626.

It is an arithmetic number, because the mean of its divisors is an integer number (42616626).

Almost surely, 2^85233251 is an apocalyptic number.

85233251 is a deficient number, since it is larger than the sum of its proper divisors (1).

85233251 is an equidigital number, since it uses as much as digits as its factorization.

85233251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 85233251 is about 9232.1856025537. The cubic root of 85233251 is about 440.0847822163.

The spelling of 85233251 in words is "eighty-five million, two hundred thirty-three thousand, two hundred fifty-one".