100055605 has 12 divisors (see below), whose sum is σ = 130014180. Its totient is φ = 73886592.

The previous prime is 100055561. The next prime is 100055623. The reversal of 100055605 is 506550001.

It can be written as a sum of positive squares in 6 ways, for example, as 4915089 + 95140516 = 2217^2 + 9754^2 .

It is not a de Polignac number, because 100055605 - 2¹⁷ = 99924533 is a prime.

It is a super-2 number, since 2×100055605² = 20022248183832050, 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 11 ways as a sum of consecutive naturals, for example, 58360 + ... + 60049.

It is an arithmetic number, because the mean of its divisors is an integer number (10834515).

Almost surely, 2^100055605 is an apocalyptic number.

It is an amenable number.

100055605 is a deficient number, since it is larger than the sum of its proper divisors (29958575).

100055605 is a wasteful number, since it uses less digits than its factorization.

100055605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118440 (or 118427 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 100055605 is about 10002.7798636179. The cubic root of 100055605 is about 464.2448992692.

The spelling of 100055605 in words is "one hundred million, fifty-five thousand, six hundred five".