5513945 has 8 divisors (see below), whose sum is σ = 6646536. Its totient is φ = 4391296.

The previous prime is 5513941. The next prime is 5513947. The reversal of 5513945 is 5493155.

It can be written as a sum of positive squares in 4 ways, for example, as 841 + 5513104 = 29^2 + 2348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5513945 - 2² = 5513941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5513941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202 + ... + 3531.

It is an arithmetic number, because the mean of its divisors is an integer number (830817).

Almost surely, 2^5513945 is an apocalyptic number.

It is an amenable number.

5513945 is a deficient number, since it is larger than the sum of its proper divisors (1132591).

5513945 is a wasteful number, since it uses less digits than its factorization.

5513945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971.

The product of its digits is 13500, while the sum is 32.

The square root of 5513945 is about 2348.1790817568. The cubic root of 5513945 is about 176.6664748228. Note that the first 3 decimals are identical.

The spelling of 5513945 in words is "five million, five hundred thirteen thousand, nine hundred forty-five".