5521145 has 8 divisors (see below), whose sum is σ = 7571904. Its totient is φ = 3785904.

The previous prime is 5521133. The next prime is 5521147. The reversal of 5521145 is 5411255.

It is a happy number.

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 5521145 - 2⁴ = 5521129 is a prime.

It is a super-2 number, since 2×5521145² = 60966084222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5521145.

It is not an unprimeable number, because it can be changed into a prime (5521147) 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, 78839 + ... + 78908.

It is an arithmetic number, because the mean of its divisors is an integer number (946488).

Almost surely, 2^5521145 is an apocalyptic number.

It is an amenable number.

5521145 is a deficient number, since it is larger than the sum of its proper divisors (2050759).

5521145 is a wasteful number, since it uses less digits than its factorization.

5521145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157759.

The product of its digits is 1000, while the sum is 23.

The square root of 5521145 is about 2349.7116844413. The cubic root of 5521145 is about 176.7433372368.

The spelling of 5521145 in words is "five million, five hundred twenty-one thousand, one hundred forty-five".