55193258 has 4 divisors (see below), whose sum is σ = 82789890. Its totient is φ = 27596628.

The previous prime is 55193231. The next prime is 55193263. The reversal of 55193258 is 85239155.

55193258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85239155 = 5 ⋅17047831.

It can be written as a sum of positive squares in only one way, i.e., 52085089 + 3108169 = 7217^2 + 1763^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13798313 + ... + 13798316.

Almost surely, 2^55193258 is an apocalyptic number.

55193258 is a deficient number, since it is larger than the sum of its proper divisors (27596632).

55193258 is a wasteful number, since it uses less digits than its factorization.

55193258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27596631.

The product of its digits is 54000, while the sum is 38.

The square root of 55193258 is about 7429.2165131998. The cubic root of 55193258 is about 380.7401502240.

The spelling of 55193258 in words is "fifty-five million, one hundred ninety-three thousand, two hundred fifty-eight".