55524121 has 2 divisors, whose sum is σ = 55524122. Its totient is φ = 55524120.

The previous prime is 55524109. The next prime is 55524167. The reversal of 55524121 is 12142555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44890000 + 10634121 = 6700^2 + 3261^2 .

It is a cyclic number.

It is not a de Polignac number, because 55524121 - 2⁵ = 55524089 is a prime.

It is not a weakly prime, because it can be changed into another prime (55524421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27762060 + 27762061.

It is an arithmetic number, because the mean of its divisors is an integer number (27762061).

Almost surely, 2^55524121 is an apocalyptic number.

It is an amenable number.

55524121 is a deficient number, since it is larger than the sum of its proper divisors (1).

55524121 is an equidigital number, since it uses as much as digits as its factorization.

55524121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000, while the sum is 25.

The square root of 55524121 is about 7451.4509325366. The cubic root of 55524121 is about 381.4994334397.

Adding to 55524121 its reverse (12142555), we get a palindrome (67666676).

It can be divided in two parts, 55 and 524121, that added together give a square (524176 = 724²).

The spelling of 55524121 in words is "fifty-five million, five hundred twenty-four thousand, one hundred twenty-one".