55100429 has 2 divisors, whose sum is σ = 55100430. Its totient is φ = 55100428.

The previous prime is 55100413. The next prime is 55100453. The reversal of 55100429 is 92400155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53655625 + 1444804 = 7325^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 55100429 - 2⁴ = 55100413 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55100398 and 55100407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55100489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550214 + 27550215.

It is an arithmetic number, because the mean of its divisors is an integer number (27550215).

Almost surely, 2^55100429 is an apocalyptic number.

It is an amenable number.

55100429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100429 is an equidigital number, since it uses as much as digits as its factorization.

55100429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 55100429 is about 7422.9663208181. The cubic root of 55100429 is about 380.5265760667.

The spelling of 55100429 in words is "fifty-five million, one hundred thousand, four hundred twenty-nine".