85508445 has 16 divisors (see below), whose sum is σ = 149251392. Its totient is φ = 41458560.

The previous prime is 85508399. The next prime is 85508473. The reversal of 85508445 is 54480558.

It is not a de Polignac number, because 85508445 - 2¹⁴ = 85492061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258952 + ... + 259281.

It is an arithmetic number, because the mean of its divisors is an integer number (9328212).

Almost surely, 2^85508445 is an apocalyptic number.

It is an amenable number.

85508445 is a deficient number, since it is larger than the sum of its proper divisors (63742947).

85508445 is a wasteful number, since it uses less digits than its factorization.

85508445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518252.

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 85508445 is about 9247.0776464784. The cubic root of 85508445 is about 440.5579097088.

The spelling of 85508445 in words is "eighty-five million, five hundred eight thousand, four hundred forty-five".