4550985 has 40 divisors (see below), whose sum is σ = 8651016. Its totient is φ = 2280960.

The previous prime is 4550983. The next prime is 4550993. The reversal of 4550985 is 5890554.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1565001 + 2985984 = 1251^2 + 1728^2 .

It is not a de Polignac number, because 4550985 - 2¹ = 4550983 is a prime.

It is a super-2 number, since 2×4550985² = 41422928940450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4550983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6555 + ... + 7215.

Almost surely, 2^4550985 is an apocalyptic number.

4550985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4550985 is a deficient number, since it is larger than the sum of its proper divisors (4100031).

4550985 is a wasteful number, since it uses less digits than its factorization.

4550985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 4550985 is about 2133.3037758369. The cubic root of 4550985 is about 165.7175362804.

The spelling of 4550985 in words is "four million, five hundred fifty thousand, nine hundred eighty-five".