55206775 has 24 divisors (see below), whose sum is σ = 75731264. Its totient is φ = 39657600.

The previous prime is 55206743. The next prime is 55206817. The reversal of 55206775 is 57760255.

It is not a de Polignac number, because 55206775 - 2⁵ = 55206743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9730 + ... + 14320.

Almost surely, 2^55206775 is an apocalyptic number.

55206775 is a deficient number, since it is larger than the sum of its proper divisors (20524489).

55206775 is a wasteful number, since it uses less digits than its factorization.

55206775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 55206775 is about 7430.1261765868. The cubic root of 55206775 is about 380.7712291681.

The spelling of 55206775 in words is "fifty-five million, two hundred six thousand, seven hundred seventy-five".