5681555 has 12 divisors (see below), whose sum is σ = 7494816. Its totient is φ = 4131600.

The previous prime is 5681531. The next prime is 5681561. The reversal of 5681555 is 5551865.

It is not a de Polignac number, because 5681555 - 2¹⁶ = 5616019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4091 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (624568).

Almost surely, 2^5681555 is an apocalyptic number.

5681555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5681555 is a deficient number, since it is larger than the sum of its proper divisors (1813261).

5681555 is a wasteful number, since it uses less digits than its factorization.

5681555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9418 (or 9407 counting only the distinct ones).

The product of its digits is 30000, while the sum is 35.

The square root of 5681555 is about 2383.6012669908. The cubic root of 5681555 is about 178.4387086972.

The spelling of 5681555 in words is "five million, six hundred eighty-one thousand, five hundred fifty-five".