85024555557 has 16 divisors (see below), whose sum is σ = 116515277760. Its totient is φ = 55150964496.

The previous prime is 85024555529. The next prime is 85024555619. The reversal of 85024555557 is 75555542058.

It is not a de Polignac number, because 85024555557 - 2⁶ = 85024555493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85029555557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127803 + ... + 431720.

It is an arithmetic number, because the mean of its divisors is an integer number (7282204860).

Almost surely, 2^85024555557 is an apocalyptic number.

It is an amenable number.

85024555557 is a deficient number, since it is larger than the sum of its proper divisors (31490722203).

85024555557 is an frugal number, since it uses more digits than its factorization.

85024555557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559637 (or 559563 counting only the distinct ones).

The product of its (nonzero) digits is 7000000, while the sum is 51.

The spelling of 85024555557 in words is "eighty-five billion, twenty-four million, five hundred fifty-five thousand, five hundred fifty-seven".