5551345 has 4 divisors (see below), whose sum is σ = 6661620. Its totient is φ = 4441072.

The previous prime is 5551339. The next prime is 5551361. The reversal of 5551345 is 5431555.

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 3013696 + 2537649 = 1736^2 + 1593^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551345 - 2⁹ = 5550833 is a prime.

5551345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555130 + ... + 555139.

It is an arithmetic number, because the mean of its divisors is an integer number (1665405).

Almost surely, 2^5551345 is an apocalyptic number.

It is an amenable number.

5551345 is a deficient number, since it is larger than the sum of its proper divisors (1110275).

5551345 is a wasteful number, since it uses less digits than its factorization.

5551345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110274.

The product of its digits is 7500, while the sum is 28.

The square root of 5551345 is about 2356.1292409373. The cubic root of 5551345 is about 177.0650063925.

The spelling of 5551345 in words is "five million, five hundred fifty-one thousand, three hundred forty-five".