5561291 has 4 divisors (see below), whose sum is σ = 5584800. Its totient is φ = 5537784.

The previous prime is 5561263. The next prime is 5561299. The reversal of 5561291 is 1921655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1921655 = 5 ⋅384331.

It is a cyclic number.

It is not a de Polignac number, because 5561291 - 2¹⁰ = 5560267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11396 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (1396200).

Almost surely, 2^5561291 is an apocalyptic number.

5561291 is a deficient number, since it is larger than the sum of its proper divisors (23509).

5561291 is a wasteful number, since it uses less digits than its factorization.

5561291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508.

The product of its digits is 2700, while the sum is 29.

The square root of 5561291 is about 2358.2389615983. The cubic root of 5561291 is about 177.1706887604.

The spelling of 5561291 in words is "five million, five hundred sixty-one thousand, two hundred ninety-one".