53387169 has 16 divisors (see below), whose sum is σ = 81742080. Its totient is φ = 30652560.

The previous prime is 53387161. The next prime is 53387171. The reversal of 53387169 is 96178335.

It is not a de Polignac number, because 53387169 - 2³ = 53387161 is a prime.

It is a super-2 number, since 2×53387169² = 5700379627669122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53387169.

It is not an unprimeable number, because it can be changed into a prime (53387161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41947 + ... + 43200.

It is an arithmetic number, because the mean of its divisors is an integer number (5108880).

Almost surely, 2^53387169 is an apocalyptic number.

It is an amenable number.

53387169 is a deficient number, since it is larger than the sum of its proper divisors (28354911).

53387169 is a wasteful number, since it uses less digits than its factorization.

53387169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85180.

The product of its digits is 136080, while the sum is 42.

The square root of 53387169 is about 7306.6523798522. The cubic root of 53387169 is about 376.5410222158.

The spelling of 53387169 in words is "fifty-three million, three hundred eighty-seven thousand, one hundred sixty-nine".