5661248 has 28 divisors (see below), whose sum is σ = 11452860. Its totient is φ = 2775552.

The previous prime is 5661247. The next prime is 5661277. The reversal of 5661248 is 8421665.

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 2096704 = 1888^2 + 1448^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (5661247) 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, 2558 + ... + 4226.

Almost surely, 2^5661248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5661248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5726430).

5661248 is an abundant number, since it is smaller than the sum of its proper divisors (5791612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5661248 is a wasteful number, since it uses less digits than its factorization.

5661248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734 (or 1724 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 5661248 is about 2379.3377229809. The cubic root of 5661248 is about 178.2258631792.

The spelling of 5661248 in words is "five million, six hundred sixty-one thousand, two hundred forty-eight".