5545402421 has 8 divisors (see below), whose sum is σ = 6110855520. Its totient is φ = 4999789872.

The previous prime is 5545402361. The next prime is 5545402427. The reversal of 5545402421 is 1242045455.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5545402421 is a prime.

It is a super-2 number, since 2×5545402421² = 61502976021665322482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545402427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4959551 + ... + 4960668.

It is an arithmetic number, because the mean of its divisors is an integer number (763856940).

Almost surely, 2^5545402421 is an apocalyptic number.

It is an amenable number.

5545402421 is a deficient number, since it is larger than the sum of its proper divisors (565453099).

5545402421 is a wasteful number, since it uses less digits than its factorization.

5545402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9920275.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 5545402421 is about 74467.4588058435. The cubic root of 5545402421 is about 1770.0180258200.

Adding to 5545402421 its reverse (1242045455), we get a palindrome (6787447876).

The spelling of 5545402421 in words is "five billion, five hundred forty-five million, four hundred two thousand, four hundred twenty-one".