85386247555 has 24 divisors (see below), whose sum is σ = 118773926496. Its totient is φ = 57725794560.

The previous prime is 85386247543. The next prime is 85386247559. The reversal of 85386247555 is 55574268358.

It is not a de Polignac number, because 85386247555 - 2²⁷ = 85252029827 is a prime.

It is a super-2 number, since 2×85386247555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85386247555.

It is not an unprimeable number, because it can be changed into a prime (85386247559) 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, 65542 + ... + 418411.

It is an arithmetic number, because the mean of its divisors is an integer number (4948913604).

Almost surely, 2^85386247555 is an apocalyptic number.

85386247555 is a deficient number, since it is larger than the sum of its proper divisors (33387678941).

85386247555 is an equidigital number, since it uses as much as digits as its factorization.

85386247555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484107 (or 484036 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 58.

The spelling of 85386247555 in words is "eighty-five billion, three hundred eighty-six million, two hundred forty-seven thousand, five hundred fifty-five".