5554981 has 4 divisors (see below), whose sum is σ = 5561100. Its totient is φ = 5548864.

The previous prime is 5554951. The next prime is 5554993. The reversal of 5554981 is 1894555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1018081 + 4536900 = 1009^2 + 2130^2 .

It is a cyclic number.

It is not a de Polignac number, because 5554981 - 2⁹ = 5554469 is a prime.

It is a super-2 number, since 2×5554981² = 61715627820722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5554981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5554931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (1390275).

Almost surely, 2^5554981 is an apocalyptic number.

It is an amenable number.

5554981 is a deficient number, since it is larger than the sum of its proper divisors (6119).

5554981 is a wasteful number, since it uses less digits than its factorization.

5554981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118.

The product of its digits is 36000, while the sum is 37.

The square root of 5554981 is about 2356.9007191649. The cubic root of 5554981 is about 177.1036557561.

The spelling of 5554981 in words is "five million, five hundred fifty-four thousand, nine hundred eighty-one".