55475258 has 4 divisors (see below), whose sum is σ = 83212890. Its totient is φ = 27737628.

The previous prime is 55475243. The next prime is 55475261. The reversal of 55475258 is 85257455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85257455 = 5 ⋅17051491.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 2229049 = 7297^2 + 1493^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13868813 + ... + 13868816.

Almost surely, 2^55475258 is an apocalyptic number.

55475258 is a deficient number, since it is larger than the sum of its proper divisors (27737632).

55475258 is a wasteful number, since it uses less digits than its factorization.

55475258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27737631.

The product of its digits is 280000, while the sum is 41.

The square root of 55475258 is about 7448.1714534508. The cubic root of 55475258 is about 381.3874900330.

The spelling of 55475258 in words is "fifty-five million, four hundred seventy-five thousand, two hundred fifty-eight".