5537561 has 8 divisors (see below), whose sum is σ = 5796864. Its totient is φ = 5283360.

The previous prime is 5537551. The next prime is 5537593. The reversal of 5537561 is 1657355.

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 5537561 - 2²² = 1343257 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5537551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040 + ... + 3486.

It is an arithmetic number, because the mean of its divisors is an integer number (724608).

Almost surely, 2^5537561 is an apocalyptic number.

It is an amenable number.

5537561 is a deficient number, since it is larger than the sum of its proper divisors (259303).

5537561 is a wasteful number, since it uses less digits than its factorization.

5537561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551.

The product of its digits is 15750, while the sum is 32.

The square root of 5537561 is about 2353.2022862474. The cubic root of 5537561 is about 176.9183340156.

The spelling of 5537561 in words is "five million, five hundred thirty-seven thousand, five hundred sixty-one".