85505403 has 16 divisors (see below), whose sum is σ = 116113536. Its totient is φ = 55960320.

The previous prime is 85505389. The next prime is 85505419. The reversal of 85505403 is 30450558.

It is not a de Polignac number, because 85505403 - 2¹⁰ = 85504379 is a prime.

It is a super-2 number, since 2×85505403² = 14622347884384818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85505003) 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, 37000 + ... + 39242.

It is an arithmetic number, because the mean of its divisors is an integer number (7257096).

Almost surely, 2^85505403 is an apocalyptic number.

85505403 is a deficient number, since it is larger than the sum of its proper divisors (30608133).

85505403 is a wasteful number, since it uses less digits than its factorization.

85505403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 85505403 is about 9246.9131606174. The cubic root of 85505403 is about 440.5526853006.

The spelling of 85505403 in words is "eighty-five million, five hundred five thousand, four hundred three".