5345550021 has 16 divisors (see below), whose sum is σ = 8149580928. Its totient is φ = 3053107200.

The previous prime is 5345550013. The next prime is 5345550059. The reversal of 5345550021 is 1200555435.

It is a happy number.

It is not a de Polignac number, because 5345550021 - 2³ = 5345550013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5345550071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17460 + ... + 104861.

It is an arithmetic number, because the mean of its divisors is an integer number (509348808).

Almost surely, 2^5345550021 is an apocalyptic number.

It is an amenable number.

5345550021 is a deficient number, since it is larger than the sum of its proper divisors (2804030907).

5345550021 is a wasteful number, since it uses less digits than its factorization.

5345550021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124412.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 5345550021 is about 73113.2684333015. The cubic root of 5345550021 is about 1748.4939446369.

It can be divided in two parts, 534 and 5550021, that added together give a palindrome (5550555).

The spelling of 5345550021 in words is "five billion, three hundred forty-five million, five hundred fifty thousand, twenty-one".