5553881 has 2 divisors, whose sum is σ = 5553882. Its totient is φ = 5553880.

The previous prime is 5553857. The next prime is 5553887. The reversal of 5553881 is 1883555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3822025 + 1731856 = 1955^2 + 1316^2 .

It is a cyclic number.

It is not a de Polignac number, because 5553881 - 2¹⁰ = 5552857 is a prime.

It is a super-2 number, since 2×5553881² = 61691188324322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5553887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776940 + 2776941.

It is an arithmetic number, because the mean of its divisors is an integer number (2776941).

Almost surely, 2^5553881 is an apocalyptic number.

It is an amenable number.

5553881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5553881 is an equidigital number, since it uses as much as digits as its factorization.

5553881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24000, while the sum is 35.

The square root of 5553881 is about 2356.6673503064. The cubic root of 5553881 is about 177.0919649341.

The spelling of 5553881 in words is "five million, five hundred fifty-three thousand, eight hundred eighty-one".