385111575527 has 4 divisors (see below), whose sum is σ = 440127514896. Its totient is φ = 330095636160.

The previous prime is 385111575517. The next prime is 385111575539. The reversal of 385111575527 is 725575111583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725575111583 = 7 ⋅103653587369.

It is a cyclic number.

It is not a de Polignac number, because 385111575527 - 2⁶ = 385111575463 is a prime.

It is a super-3 number, since 3×385111575527³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385111575517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27507969674 + ... + 27507969687.

It is an arithmetic number, because the mean of its divisors is an integer number (110031878724).

Almost surely, 2^385111575527 is an apocalyptic number.

385111575527 is a deficient number, since it is larger than the sum of its proper divisors (55015939369).

385111575527 is an equidigital number, since it uses as much as digits as its factorization.

385111575527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55015939368.

The product of its digits is 1470000, while the sum is 50.

The spelling of 385111575527 in words is "three hundred eighty-five billion, one hundred eleven million, five hundred seventy-five thousand, five hundred twenty-seven".