55214129 has 2 divisors, whose sum is σ = 55214130. Its totient is φ = 55214128.

The previous prime is 55214123. The next prime is 55214141. The reversal of 55214129 is 92141255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 1221025 = 7348^2 + 1105^2 .

It is a cyclic number.

It is not a de Polignac number, because 55214129 - 2¹⁶ = 55148593 is a prime.

It is equal to p_3294245 and since 55214129 and 3294245 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55214123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27607064 + 27607065.

It is an arithmetic number, because the mean of its divisors is an integer number (27607065).

Almost surely, 2^55214129 is an apocalyptic number.

It is an amenable number.

55214129 is a deficient number, since it is larger than the sum of its proper divisors (1).

55214129 is an equidigital number, since it uses as much as digits as its factorization.

55214129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 55214129 is about 7430.6210373023. The cubic root of 55214129 is about 380.7881357120.

The spelling of 55214129 in words is "fifty-five million, two hundred fourteen thousand, one hundred twenty-nine".