5542778 has 4 divisors (see below), whose sum is σ = 8314170. Its totient is φ = 2771388.

The previous prime is 5542777. The next prime is 5542783. The reversal of 5542778 is 8772455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8772455 = 5 ⋅1754491.

It can be written as a sum of positive squares in only one way, i.e., 4190209 + 1352569 = 2047^2 + 1163^2 .

It is a d-powerful number, because it can be written as 5⁶ + 5⁸ + 4⁵ + 2²² + 7⁶ + 7⁷ + 8 .

It is not an unprimeable number, because it can be changed into a prime (5542777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385693 + ... + 1385696.

Almost surely, 2^5542778 is an apocalyptic number.

5542778 is a deficient number, since it is larger than the sum of its proper divisors (2771392).

5542778 is a wasteful number, since it uses less digits than its factorization.

5542778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771391.

The product of its digits is 78400, while the sum is 38.

The square root of 5542778 is about 2354.3105147792. The cubic root of 5542778 is about 176.9738755106.

The spelling of 5542778 in words is "five million, five hundred forty-two thousand, seven hundred seventy-eight".