85415263 has 2 divisors, whose sum is σ = 85415264. Its totient is φ = 85415262.

The previous prime is 85415249. The next prime is 85415321. The reversal of 85415263 is 36251458.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85415263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85415563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42707631 + 42707632.

It is an arithmetic number, because the mean of its divisors is an integer number (42707632).

Almost surely, 2^85415263 is an apocalyptic number.

85415263 is a deficient number, since it is larger than the sum of its proper divisors (1).

85415263 is an equidigital number, since it uses as much as digits as its factorization.

85415263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 34.

The square root of 85415263 is about 9242.0378164126. The cubic root of 85415263 is about 440.3978203039.

The spelling of 85415263 in words is "eighty-five million, four hundred fifteen thousand, two hundred sixty-three".