553902385 has 4 divisors (see below), whose sum is σ = 664682868. Its totient is φ = 443121904.

The previous prime is 553902373. The next prime is 553902397. The reversal of 553902385 is 583209355.

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

It is an interprime number because it is at equal distance from previous prime (553902373) and next prime (553902397).

It can be written as a sum of positive squares in 2 ways, for example, as 138109504 + 415792881 = 11752^2 + 20391^2 .

It is a cyclic number.

It is not a de Polignac number, because 553902385 - 2⁷ = 553902257 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55390234 + ... + 55390243.

It is an arithmetic number, because the mean of its divisors is an integer number (166170717).

Almost surely, 2^553902385 is an apocalyptic number.

It is an amenable number.

553902385 is a deficient number, since it is larger than the sum of its proper divisors (110780483).

553902385 is a wasteful number, since it uses less digits than its factorization.

553902385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110780482.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 553902385 is about 23535.1308685548. The cubic root of 553902385 is about 821.2544674558.

It can be divided in two parts, 55390 and 2385, that added together give a palindrome (57775).

The spelling of 553902385 in words is "five hundred fifty-three million, nine hundred two thousand, three hundred eighty-five".