55323385 has 16 divisors (see below), whose sum is σ = 71704080. Its totient is φ = 40734720.

The previous prime is 55323319. The next prime is 55323431. The reversal of 55323385 is 58332355.

It can be written as a sum of positive squares in 8 ways, for example, as 385641 + 54937744 = 621^2 + 7412^2 .

It is not a de Polignac number, because 55323385 - 2⁹ = 55322873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55323385.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25545 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (4481505).

Almost surely, 2^55323385 is an apocalyptic number.

It is an amenable number.

55323385 is a deficient number, since it is larger than the sum of its proper divisors (16380695).

55323385 is a wasteful number, since it uses less digits than its factorization.

55323385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508.

The product of its digits is 54000, while the sum is 34.

The square root of 55323385 is about 7437.9691448674. The cubic root of 55323385 is about 381.0391341326.

The spelling of 55323385 in words is "fifty-five million, three hundred twenty-three thousand, three hundred eighty-five".