85651755 has 24 divisors (see below), whose sum is σ = 159418512. Its totient is φ = 39154752.

The previous prime is 85651751. The next prime is 85651771. The reversal of 85651755 is 55715658.

It is not a de Polignac number, because 85651755 - 2² = 85651751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85651751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57532 + ... + 59001.

It is an arithmetic number, because the mean of its divisors is an integer number (6642438).

Almost surely, 2^85651755 is an apocalyptic number.

85651755 is a deficient number, since it is larger than the sum of its proper divisors (73766757).

85651755 is a wasteful number, since it uses less digits than its factorization.

85651755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116555 (or 116548 counting only the distinct ones).

The product of its digits is 210000, while the sum is 42.

The square root of 85651755 is about 9254.8233370497. The cubic root of 85651755 is about 440.8038936589.

The spelling of 85651755 in words is "eighty-five million, six hundred fifty-one thousand, seven hundred fifty-five".