55430032213 has 2 divisors, whose sum is σ = 55430032214. Its totient is φ = 55430032212.

The previous prime is 55430032201. The next prime is 55430032291. The reversal of 55430032213 is 31223003455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48262377969 + 7167654244 = 219687^2 + 84662^2 .

It is a cyclic number.

It is not a de Polignac number, because 55430032213 - 2¹⁷ = 55429901141 is a prime.

It is a super-2 number, since 2×55430032213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55430072213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27715016106 + 27715016107.

It is an arithmetic number, because the mean of its divisors is an integer number (27715016107).

Almost surely, 2^55430032213 is an apocalyptic number.

It is an amenable number.

55430032213 is a deficient number, since it is larger than the sum of its proper divisors (1).

55430032213 is an equidigital number, since it uses as much as digits as its factorization.

55430032213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 55430032213 its reverse (31223003455), we get a palindrome (86653035668).

The spelling of 55430032213 in words is "fifty-five billion, four hundred thirty million, thirty-two thousand, two hundred thirteen".