5561242 has 4 divisors (see below), whose sum is σ = 8341866. Its totient is φ = 2780620.

The previous prime is 5561221. The next prime is 5561263. The reversal of 5561242 is 2421655.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5561221) and next prime (5561263).

It can be written as a sum of positive squares in only one way, i.e., 4414201 + 1147041 = 2101^2 + 1071^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1390309 + ... + 1390312.

Almost surely, 2^5561242 is an apocalyptic number.

5561242 is a deficient number, since it is larger than the sum of its proper divisors (2780624).

5561242 is a wasteful number, since it uses less digits than its factorization.

5561242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780623.

The product of its digits is 2400, while the sum is 25.

The square root of 5561242 is about 2358.2285724671. The cubic root of 5561242 is about 177.1701684143.

Adding to 5561242 its reverse (2421655), we get a palindrome (7982897).

It can be divided in two parts, 55 and 61242, that multiplied together give a triangular number (3368310 = T₂₅₉₅).

The spelling of 5561242 in words is "five million, five hundred sixty-one thousand, two hundred forty-two".