53290666 has 32 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 22255680.

The previous prime is 53290663. The next prime is 53290681. The reversal of 53290666 is 66609235.

53290666 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 (53290663) 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, 111015 + ... + 111493.

It is an arithmetic number, because the mean of its divisors is an integer number (2948400).

Almost surely, 2^53290666 is an apocalyptic number.

53290666 is a deficient number, since it is larger than the sum of its proper divisors (41058134).

53290666 is a wasteful number, since it uses less digits than its factorization.

53290666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 53290666 is about 7300.0456162958. The cubic root of 53290666 is about 376.3140060276.

It can be divided in two parts, 53290 and 666, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53290666 in words is "fifty-three million, two hundred ninety thousand, six hundred sixty-six".