385553053 has 4 divisors (see below), whose sum is σ = 394956828. Its totient is φ = 376149280.

The previous prime is 385553029. The next prime is 385553059. The reversal of 385553053 is 350355583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214388164 + 171164889 = 14642^2 + 13083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385553053 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385553059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4701826 + ... + 4701907.

It is an arithmetic number, because the mean of its divisors is an integer number (98739207).

Almost surely, 2^385553053 is an apocalyptic number.

It is an amenable number.

385553053 is a deficient number, since it is larger than the sum of its proper divisors (9403775).

385553053 is an equidigital number, since it uses as much as digits as its factorization.

385553053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403774.

The product of its (nonzero) digits is 135000, while the sum is 37.

The square root of 385553053 is about 19635.5049082014. The cubic root of 385553053 is about 727.8268095491.

It can be divided in two parts, 3855530 and 53, that added together give a palindrome (3855583).

The spelling of 385553053 in words is "three hundred eighty-five million, five hundred fifty-three thousand, fifty-three".