55619250 has 32 divisors (see below), whose sum is σ = 138827520. Its totient is φ = 14831600.

The previous prime is 55619237. The next prime is 55619261. The reversal of 55619250 is 5291655.

55619250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 36330 + ... + 37829.

It is an arithmetic number, because the mean of its divisors is an integer number (4338360).

Almost surely, 2^55619250 is an apocalyptic number.

55619250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55619250 is an abundant number, since it is smaller than the sum of its proper divisors (83208270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55619250 is a wasteful number, since it uses less digits than its factorization.

55619250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74179 (or 74169 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 55619250 is about 7457.8314542500. The cubic root of 55619250 is about 381.7171823663.

The spelling of 55619250 in words is "fifty-five million, six hundred nineteen thousand, two hundred fifty".