55205950 has 12 divisors (see below), whose sum is σ = 102683160. Its totient is φ = 22082360.

The previous prime is 55205933. The next prime is 55205951. The reversal of 55205950 is 5950255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55205951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552010 + ... + 552109.

It is an arithmetic number, because the mean of its divisors is an integer number (8556930).

Almost surely, 2^55205950 is an apocalyptic number.

55205950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55205950 is a deficient number, since it is larger than the sum of its proper divisors (47477210).

55205950 is a wasteful number, since it uses less digits than its factorization.

55205950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104131 (or 1104126 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 55205950 is about 7430.0706591526. The cubic root of 55205950 is about 380.7693324333.

The spelling of 55205950 in words is "fifty-five million, two hundred five thousand, nine hundred fifty".