85745505 has 8 divisors (see below), whose sum is σ = 137192832. Its totient is φ = 45730928.

The previous prime is 85745459. The next prime is 85745509. The reversal of 85745505 is 50554758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85745505 - 2⁶ = 85745441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85745509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858169 + ... + 2858198.

It is an arithmetic number, because the mean of its divisors is an integer number (17149104).

Almost surely, 2^85745505 is an apocalyptic number.

It is an amenable number.

85745505 is a deficient number, since it is larger than the sum of its proper divisors (51447327).

85745505 is a wasteful number, since it uses less digits than its factorization.

85745505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716375.

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 85745505 is about 9259.8868783587. The cubic root of 85745505 is about 440.9646620971.

The spelling of 85745505 in words is "eighty-five million, seven hundred forty-five thousand, five hundred five".