5437561 has 4 divisors (see below), whose sum is σ = 5444992. Its totient is φ = 5430132.

The previous prime is 5437547. The next prime is 5437567. The reversal of 5437561 is 1657345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5437561 - 2¹¹ = 5435513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5437567) 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 3 ways as a sum of consecutive naturals, for example, 2481 + ... + 4126.

It is an arithmetic number, because the mean of its divisors is an integer number (1361248).

Almost surely, 2^5437561 is an apocalyptic number.

It is an amenable number.

5437561 is a deficient number, since it is larger than the sum of its proper divisors (7431).

5437561 is an equidigital number, since it uses as much as digits as its factorization.

5437561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430.

The product of its digits is 12600, while the sum is 31.

The square root of 5437561 is about 2331.8578430084. The cubic root of 5437561 is about 175.8468989681.

The spelling of 5437561 in words is "five million, four hundred thirty-seven thousand, five hundred sixty-one".