5501213421 has 16 divisors (see below), whose sum is σ = 8121197568. Its totient is φ = 3284305200.

The previous prime is 5501213401. The next prime is 5501213423. The reversal of 5501213421 is 1243121055.

It is a happy number.

It is not a de Polignac number, because 5501213421 - 2²¹ = 5499116269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5501213391 and 5501213400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5501213423) 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, 1241845 + ... + 1246266.

It is an arithmetic number, because the mean of its divisors is an integer number (507574848).

Almost surely, 2^5501213421 is an apocalyptic number.

It is an amenable number.

5501213421 is a deficient number, since it is larger than the sum of its proper divisors (2619984147).

5501213421 is a wasteful number, since it uses less digits than its factorization.

5501213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488192.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5501213421 is about 74170.1653024988. The cubic root of 5501213421 is about 1765.3039702028.

Adding to 5501213421 its reverse (1243121055), we get a palindrome (6744334476).

The spelling of 5501213421 in words is "five billion, five hundred one million, two hundred thirteen thousand, four hundred twenty-one".