5661355 has 8 divisors (see below), whose sum is σ = 7764192. Its totient is φ = 3882048.

The previous prime is 5661343. The next prime is 5661367. The reversal of 5661355 is 5531665.

It is an interprime number because it is at equal distance from previous prime (5661343) and next prime (5661367).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5661355 - 2⁹ = 5660843 is a prime.

It is a Duffinian number.

5661355 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80842 + ... + 80911.

It is an arithmetic number, because the mean of its divisors is an integer number (970524).

Almost surely, 2^5661355 is an apocalyptic number.

5661355 is a deficient number, since it is larger than the sum of its proper divisors (2102837).

5661355 is a wasteful number, since it uses less digits than its factorization.

5661355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161765.

The product of its digits is 13500, while the sum is 31.

The square root of 5661355 is about 2379.3602081232. The cubic root of 5661355 is about 178.2269860204.

The spelling of 5661355 in words is "five million, six hundred sixty-one thousand, three hundred fifty-five".