5542666 has 4 divisors (see below), whose sum is σ = 8314002. Its totient is φ = 2771332.

The previous prime is 5542633. The next prime is 5542673. The reversal of 5542666 is 6662455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6662455 = 5 ⋅1332491.

It can be written as a sum of positive squares in only one way, i.e., 4532641 + 1010025 = 2129^2 + 1005^2 .

It is a super-2 number, since 2×5542666² = 61442292775112, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5³ + 5⁷ + 4⁴ + 2²¹ + 6⁵ + 6⁸ + 6⁸ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385665 + ... + 1385668.

Almost surely, 2^5542666 is an apocalyptic number.

5542666 is a deficient number, since it is larger than the sum of its proper divisors (2771336).

5542666 is a wasteful number, since it uses less digits than its factorization.

5542666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771335.

The product of its digits is 43200, while the sum is 34.

The square root of 5542666 is about 2354.2867285019. The cubic root of 5542666 is about 176.9726834966.

The spelling of 5542666 in words is "five million, five hundred forty-two thousand, six hundred sixty-six".