55075205 has 16 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 40299840.

The previous prime is 55075171. The next prime is 55075213. The reversal of 55075205 is 50257055.

It is not a de Polignac number, because 55075205 - 2¹⁸ = 54813061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7241 + ... + 12750.

It is an arithmetic number, because the mean of its divisors is an integer number (4498200).

Almost surely, 2^55075205 is an apocalyptic number.

It is an amenable number.

55075205 is a deficient number, since it is larger than the sum of its proper divisors (16895995).

55075205 is a wasteful number, since it uses less digits than its factorization.

55075205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044.

The product of its (nonzero) digits is 8750, while the sum is 29.

The square root of 55075205 is about 7421.2670751025. The cubic root of 55075205 is about 380.4685010961.

The spelling of 55075205 in words is "fifty-five million, seventy-five thousand, two hundred five".