85603510553 has 16 divisors (see below), whose sum is σ = 93952872000. Its totient is φ = 77349876480.

The previous prime is 85603510513. The next prime is 85603510571. The reversal of 85603510553 is 35501530658.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85603510553 - 2¹⁰ = 85603509529 is a prime.

It is a super-2 number, since 2×85603510553² (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 85603510553.

It is not an unprimeable number, because it can be changed into a prime (85603510513) 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, 1428998 + ... + 1487696.

It is an arithmetic number, because the mean of its divisors is an integer number (5872054500).

Almost surely, 2^85603510553 is an apocalyptic number.

It is an amenable number.

85603510553 is a deficient number, since it is larger than the sum of its proper divisors (8349361447).

85603510553 is a wasteful number, since it uses less digits than its factorization.

85603510553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59512.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 85603510553 in words is "eighty-five billion, six hundred three million, five hundred ten thousand, five hundred fifty-three".