55273770 has 24 divisors (see below), whose sum is σ = 143712036. Its totient is φ = 14739648.

The previous prime is 55273763. The next prime is 55273787. The reversal of 55273770 is 7737255.

55273770 is a `hidden beast` number, since 552 + 7 + 37 + 70 = 666.

55273770 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 2 ways, for example, as 50851161 + 4422609 = 7131^2 + 2103^2 .

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 11 ways as a sum of consecutive naturals, for example, 306987 + ... + 307166.

Almost surely, 2^55273770 is an apocalyptic number.

55273770 is an abundant number, since it is smaller than the sum of its proper divisors (88438266).

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

55273770 is a wasteful number, since it uses less digits than its factorization.

55273770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614166 (or 614163 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 36.

The square root of 55273770 is about 7434.6331449507. The cubic root of 55273770 is about 380.9251924966.

The spelling of 55273770 in words is "fifty-five million, two hundred seventy-three thousand, seven hundred seventy".