53669109 has 8 divisors (see below), whose sum is σ = 77063392. Its totient is φ = 33027120.

The previous prime is 53669069. The next prime is 53669131. The reversal of 53669109 is 90196635.

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

It is not a de Polignac number, because 53669109 - 2¹² = 53665013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1376131 = 53669109 / (5 + 3 + 6 + 6 + 9 + 1 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53669149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688027 + ... + 688104.

It is an arithmetic number, because the mean of its divisors is an integer number (9632924).

Almost surely, 2^53669109 is an apocalyptic number.

It is an amenable number.

53669109 is a deficient number, since it is larger than the sum of its proper divisors (23394283).

53669109 is a wasteful number, since it uses less digits than its factorization.

53669109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376147.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 53669109 is about 7325.9203517374. The cubic root of 53669109 is about 377.2027020547.

The spelling of 53669109 in words is "fifty-three million, six hundred sixty-nine thousand, one hundred nine".