55065570 has 32 divisors (see below), whose sum is σ = 151037568. Its totient is φ = 12586368.

The previous prime is 55065559. The next prime is 55065581. The reversal of 55065570 is 7556055.

55065570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55065559) and next prime (55065581).

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, 130899 + ... + 131318.

It is an arithmetic number, because the mean of its divisors is an integer number (4719924).

Almost surely, 2^55065570 is an apocalyptic number.

55065570 is an abundant number, since it is smaller than the sum of its proper divisors (95971998).

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

55065570 is a wasteful number, since it uses less digits than its factorization.

55065570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262234.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 55065570 is about 7420.6178988006. The cubic root of 55065570 is about 380.4463130849.

It can be divided in two parts, 550655 and 70, that added together give a triangular number (550725 = T₁₀₄₉).

The spelling of 55065570 in words is "fifty-five million, sixty-five thousand, five hundred seventy".