55208858 has 4 divisors (see below), whose sum is σ = 82813290. Its totient is φ = 27604428.

The previous prime is 55208833. The next prime is 55208869. The reversal of 55208858 is 85880255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35557369 + 19651489 = 5963^2 + 4433^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13802213 + ... + 13802216.

Almost surely, 2^55208858 is an apocalyptic number.

55208858 is a deficient number, since it is larger than the sum of its proper divisors (27604432).

55208858 is a wasteful number, since it uses less digits than its factorization.

55208858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27604431.

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 55208858 is about 7430.2663478505. The cubic root of 55208858 is about 380.7760180519.

The spelling of 55208858 in words is "fifty-five million, two hundred eight thousand, eight hundred fifty-eight".