53910369 has 24 divisors (see below), whose sum is σ = 80848040. Its totient is φ = 34587648.

The previous prime is 53910361. The next prime is 53910401. The reversal of 53910369 is 96301935.

It can be written as a sum of positive squares in 4 ways, for example, as 17766225 + 36144144 = 4215^2 + 6012^2 .

It is not a de Polignac number, because 53910369 - 2³ = 53910361 is a prime.

It is a super-2 number, since 2×53910369² = 5812655771432322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53910361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31467 + ... + 33135.

Almost surely, 2^53910369 is an apocalyptic number.

It is an amenable number.

53910369 is a deficient number, since it is larger than the sum of its proper divisors (26937671).

53910369 is a wasteful number, since it uses less digits than its factorization.

53910369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 53910369 is about 7342.3680784880. The cubic root of 53910369 is about 377.7670732613.

The spelling of 53910369 in words is "fifty-three million, nine hundred ten thousand, three hundred sixty-nine".