55973290 has 32 divisors (see below), whose sum is σ = 105071616. Its totient is φ = 21444480.

The previous prime is 55973263. The next prime is 55973293. The reversal of 55973290 is 9237955.

55973290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55973293) by changing a digit.

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, 31054 + ... + 32806.

It is an arithmetic number, because the mean of its divisors is an integer number (3283488).

Almost surely, 2^55973290 is an apocalyptic number.

55973290 is a deficient number, since it is larger than the sum of its proper divisors (49098326).

55973290 is a wasteful number, since it uses less digits than its factorization.

55973290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 55973290 is about 7481.5299237522. The cubic root of 55973290 is about 382.5254002242.

The spelling of 55973290 in words is "fifty-five million, nine hundred seventy-three thousand, two hundred ninety".