55266145 has 24 divisors (see below), whose sum is σ = 73467072. Its totient is φ = 39879840.

The previous prime is 55266143. The next prime is 55266179. The reversal of 55266145 is 54166255.

55266145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55266145 - 2¹ = 55266143 is a prime.

It is a super-2 number, since 2×55266145² = 6108693566322050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55266145.

It is not an unprimeable number, because it can be changed into a prime (55266143) 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 23 ways as a sum of consecutive naturals, for example, 100762 + ... + 101308.

It is an arithmetic number, because the mean of its divisors is an integer number (3061128).

Almost surely, 2^55266145 is an apocalyptic number.

55266145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55266145 is a deficient number, since it is larger than the sum of its proper divisors (18200927).

55266145 is a wasteful number, since it uses less digits than its factorization.

55266145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 730 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 55266145 is about 7434.1203245576. The cubic root of 55266145 is about 380.9076755191.

The spelling of 55266145 in words is "fifty-five million, two hundred sixty-six thousand, one hundred forty-five".