55150129 has 4 divisors (see below), whose sum is σ = 56323584. Its totient is φ = 53976676.

The previous prime is 55150127. The next prime is 55150133. The reversal of 55150129 is 92105155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55150129 - 2¹ = 55150127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55150097 and 55150106.

It is not an unprimeable number, because it can be changed into a prime (55150127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586657 + ... + 586750.

It is an arithmetic number, because the mean of its divisors is an integer number (14080896).

Almost surely, 2^55150129 is an apocalyptic number.

It is an amenable number.

55150129 is a deficient number, since it is larger than the sum of its proper divisors (1173455).

55150129 is a wasteful number, since it uses less digits than its factorization.

55150129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173454.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 55150129 is about 7426.3132845309. The cubic root of 55150129 is about 380.6409519910.

The spelling of 55150129 in words is "fifty-five million, one hundred fifty thousand, one hundred twenty-nine".