85203557 has 8 divisors (see below), whose sum is σ = 86236800. Its totient is φ = 84174480.

The previous prime is 85203553. The next prime is 85203571. The reversal of 85203557 is 75530258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85203557 - 2² = 85203553 is a prime.

It is a super-2 number, since 2×85203557² = 14519292250904498, which contains 22 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 (85203551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61007 + ... + 62387.

It is an arithmetic number, because the mean of its divisors is an integer number (10779600).

Almost surely, 2^85203557 is an apocalyptic number.

It is an amenable number.

85203557 is a deficient number, since it is larger than the sum of its proper divisors (1033243).

85203557 is a wasteful number, since it uses less digits than its factorization.

85203557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 85203557 is about 9230.5772842223. The cubic root of 85203557 is about 440.0336699441.

The spelling of 85203557 in words is "eighty-five million, two hundred three thousand, five hundred fifty-seven".