5552781 has 16 divisors (see below), whose sum is σ = 8029056. Its totient is φ = 3393216.

The previous prime is 5552779. The next prime is 5552791. The reversal of 5552781 is 1872555.

It is a happy number.

5552781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5552781 - 2¹ = 5552779 is a prime.

It is a super-2 number, since 2×5552781² = 61666753667922, which contains 22 as substring.

5552781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5552711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6336 + ... + 7158.

It is an arithmetic number, because the mean of its divisors is an integer number (501816).

Almost surely, 2^5552781 is an apocalyptic number.

It is an amenable number.

5552781 is a deficient number, since it is larger than the sum of its proper divisors (2476275).

5552781 is a wasteful number, since it uses less digits than its factorization.

5552781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its digits is 14000, while the sum is 33.

The square root of 5552781 is about 2356.4339583362. The cubic root of 5552781 is about 177.0802725684.

The spelling of 5552781 in words is "five million, five hundred fifty-two thousand, seven hundred eighty-one".