5561601 has 16 divisors (see below), whose sum is σ = 7910784. Its totient is φ = 3463424.

The previous prime is 5561599. The next prime is 5561627. The reversal of 5561601 is 1061655.

It is a cyclic number.

It is not a de Polignac number, because 5561601 - 2¹ = 5561599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5561641) 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, 8191 + ... + 8843.

It is an arithmetic number, because the mean of its divisors is an integer number (494424).

Almost surely, 2^5561601 is an apocalyptic number.

5561601 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5561601 is a deficient number, since it is larger than the sum of its proper divisors (2349183).

5561601 is a wasteful number, since it uses less digits than its factorization.

5561601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5561601 is about 2358.3046876941. The cubic root of 5561601 is about 177.1739806755.

The spelling of 5561601 in words is "five million, five hundred sixty-one thousand, six hundred one".