55042450 has 36 divisors (see below), whose sum is σ = 107075178. Its totient is φ = 21049600.

The previous prime is 55042441. The next prime is 55042483. The reversal of 55042450 is 5424055.

55042450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 37711881 + 17330569 = 6141^2 + 4163^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25410 + ... + 27490.

Almost surely, 2^55042450 is an apocalyptic number.

55042450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55042450 is a deficient number, since it is larger than the sum of its proper divisors (52032728).

55042450 is a wasteful number, since it uses less digits than its factorization.

55042450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139 (or 2111 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55042450 is about 7419.0599134931. The cubic root of 55042450 is about 380.3930605106.

The spelling of 55042450 in words is "fifty-five million, forty-two thousand, four hundred fifty".