55024213 has 2 divisors, whose sum is σ = 55024214. Its totient is φ = 55024212.

The previous prime is 55024201. The next prime is 55024237. The reversal of 55024213 is 31242055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54508689 + 515524 = 7383^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 55024213 - 2¹³ = 55016021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55024243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27512106 + 27512107.

It is an arithmetic number, because the mean of its divisors is an integer number (27512107).

Almost surely, 2^55024213 is an apocalyptic number.

It is an amenable number.

55024213 is a deficient number, since it is larger than the sum of its proper divisors (1).

55024213 is an equidigital number, since it uses as much as digits as its factorization.

55024213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55024213 is about 7417.8307475973. The cubic root of 55024213 is about 380.3510444875.

Adding to 55024213 its reverse (31242055), we get a palindrome (86266268).

The spelling of 55024213 in words is "fifty-five million, twenty-four thousand, two hundred thirteen".