623556085 has 32 divisors (see below), whose sum is σ = 784627200. Its totient is φ = 475338240.

The previous prime is 623556053. The next prime is 623556113. The reversal of 623556085 is 580655326.

It is not a de Polignac number, because 623556085 - 2⁵ = 623556053 is a prime.

It is a super-2 number, since 2×623556085² = 777644382281054450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2250967 + ... + 2251243.

It is an arithmetic number, because the mean of its divisors is an integer number (24519600).

Almost surely, 2^623556085 is an apocalyptic number.

It is an amenable number.

623556085 is a deficient number, since it is larger than the sum of its proper divisors (161071115).

623556085 is a wasteful number, since it uses less digits than its factorization.

623556085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 623556085 is about 24971.1050015813. The cubic root of 623556085 is about 854.3290496699.

The spelling of 623556085 in words is "six hundred twenty-three million, five hundred fifty-six thousand, eighty-five".