55212050 has 12 divisors (see below), whose sum is σ = 102694506. Its totient is φ = 22084800.

The previous prime is 55212011. The next prime is 55212071. The reversal of 55212050 is 5021255.

It can be written as a sum of positive squares in 3 ways, for example, as 44049769 + 11162281 = 6637^2 + 3341^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552071 + ... + 552170.

Almost surely, 2^55212050 is an apocalyptic number.

55212050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55212050 is a deficient number, since it is larger than the sum of its proper divisors (47482456).

55212050 is a wasteful number, since it uses less digits than its factorization.

55212050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104253 (or 1104248 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55212050 is about 7430.4811418911. The cubic root of 55212050 is about 380.7833563286.

The spelling of 55212050 in words is "fifty-five million, two hundred twelve thousand, fifty".