5635554202421 has 16 divisors (see below), whose sum is σ = 6714041539968. Its totient is φ = 4662528830400.

The previous prime is 5635554202403. The next prime is 5635554202427. The reversal of 5635554202421 is 1242024555365.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5635554202421 - 2⁶ = 5635554202357 is a prime.

It is a super-2 number, since 2×5635554202421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5635554202427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277521326 + ... + 277541631.

It is an arithmetic number, because the mean of its divisors is an integer number (419627596248).

Almost surely, 2^{5635554202421} is an apocalyptic number.

It is an amenable number.

5635554202421 is a deficient number, since it is larger than the sum of its proper divisors (1078487337547).

5635554202421 is a wasteful number, since it uses less digits than its factorization.

5635554202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555063052.

The product of its (nonzero) digits is 1440000, while the sum is 44.

Adding to 5635554202421 its reverse (1242024555365), we get a palindrome (6877578757786).

The spelling of 5635554202421 in words is "five trillion, six hundred thirty-five billion, five hundred fifty-four million, two hundred two thousand, four hundred twenty-one".