55214400213421 has 16 divisors (see below), whose sum is σ = 55357960507200. Its totient is φ = 55071037676160.

The previous prime is 55214400213389. The next prime is 55214400213481. The reversal of 55214400213421 is 12431200441255.

It is a cyclic number.

It is not a de Polignac number, because 55214400213421 - 2⁵ = 55214400213389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55214400213481) 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, 4215154930 + ... + 4215168028.

It is an arithmetic number, because the mean of its divisors is an integer number (3459872531700).

Almost surely, 2^{55214400213421} is an apocalyptic number.

It is an amenable number.

55214400213421 is a deficient number, since it is larger than the sum of its proper divisors (143560293779).

55214400213421 is a wasteful number, since it uses less digits than its factorization.

55214400213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19836.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 55214400213421 its reverse (12431200441255), we get a palindrome (67645600654676).

The spelling of 55214400213421 in words is "fifty-five trillion, two hundred fourteen billion, four hundred million, two hundred thirteen thousand, four hundred twenty-one".