55498129 has 2 divisors, whose sum is σ = 55498130. Its totient is φ = 55498128.

The previous prime is 55498123. The next prime is 55498159. The reversal of 55498129 is 92189455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44289025 + 11209104 = 6655^2 + 3348^2 .

It is a cyclic number.

It is not a de Polignac number, because 55498129 - 2⁵ = 55498097 is a prime.

It is not a weakly prime, because it can be changed into another prime (55498123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27749064 + 27749065.

It is an arithmetic number, because the mean of its divisors is an integer number (27749065).

Almost surely, 2^55498129 is an apocalyptic number.

It is an amenable number.

55498129 is a deficient number, since it is larger than the sum of its proper divisors (1).

55498129 is an equidigital number, since it uses as much as digits as its factorization.

55498129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 43.

The square root of 55498129 is about 7449.7066385194. The cubic root of 55498129 is about 381.4398948657.

The spelling of 55498129 in words is "fifty-five million, four hundred ninety-eight thousand, one hundred twenty-nine".