55255775 has 12 divisors (see below), whose sum is σ = 71496912. Its totient is φ = 42282240.

The previous prime is 55255751. The next prime is 55255841. The reversal of 55255775 is 57755255.

It is a de Polignac number, because none of the positive numbers 2^k-55255775 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 47474 + ... + 48623.

It is an arithmetic number, because the mean of its divisors is an integer number (5958076).

Almost surely, 2^55255775 is an apocalyptic number.

55255775 is a deficient number, since it is larger than the sum of its proper divisors (16241137).

55255775 is a wasteful number, since it uses less digits than its factorization.

55255775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96130 (or 96125 counting only the distinct ones).

The product of its digits is 306250, while the sum is 41.

The square root of 55255775 is about 7433.4228320472. The cubic root of 55255775 is about 380.8838498438.

The spelling of 55255775 in words is "fifty-five million, two hundred fifty-five thousand, seven hundred seventy-five".