53669885 has 8 divisors (see below), whose sum is σ = 65042136. Its totient is φ = 42510400.

The previous prime is 53669873. The next prime is 53669909. The reversal of 53669885 is 58896635.

It can be written as a sum of positive squares in 4 ways, for example, as 38217124 + 15452761 = 6182^2 + 3931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53669885 - 2⁶ = 53669821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52634 + ... + 53643.

It is an arithmetic number, because the mean of its divisors is an integer number (8130267).

Almost surely, 2^53669885 is an apocalyptic number.

It is an amenable number.

53669885 is a deficient number, since it is larger than the sum of its proper divisors (11372251).

53669885 is a wasteful number, since it uses less digits than its factorization.

53669885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106383.

The product of its digits is 1555200, while the sum is 50.

The square root of 53669885 is about 7325.9733141747. The cubic root of 53669885 is about 377.2045200334.

It can be divided in two parts, 5366 and 9885, that added together give a palindrome (15251).

The spelling of 53669885 in words is "fifty-three million, six hundred sixty-nine thousand, eight hundred eighty-five".