5540245 has 4 divisors (see below), whose sum is σ = 6648300. Its totient is φ = 4432192.

The previous prime is 5540243. The next prime is 5540251. The reversal of 5540245 is 5420455.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 4301476 = 1113^2 + 2074^2 .

It is a cyclic number.

It is not a de Polignac number, because 5540245 - 2¹ = 5540243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540243) 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, 554020 + ... + 554029.

It is an arithmetic number, because the mean of its divisors is an integer number (1662075).

Almost surely, 2^5540245 is an apocalyptic number.

It is an amenable number.

5540245 is a deficient number, since it is larger than the sum of its proper divisors (1108055).

5540245 is a wasteful number, since it uses less digits than its factorization.

5540245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108054.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 5540245 is about 2353.7725038754. The cubic root of 5540245 is about 176.9469129099.

The spelling of 5540245 in words is "five million, five hundred forty thousand, two hundred forty-five".