53409364 has 12 divisors (see below), whose sum is σ = 94430644. Its totient is φ = 26429184.

The previous prime is 53409353. The next prime is 53409383. The reversal of 53409364 is 46390435.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23619600 + 29789764 = 4860^2 + 5458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68439 + ... + 69214.

Almost surely, 2^53409364 is an apocalyptic number.

It is an amenable number.

53409364 is a deficient number, since it is larger than the sum of its proper divisors (41021280).

53409364 is a wasteful number, since it uses less digits than its factorization.

53409364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137754 (or 137752 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 53409364 is about 7308.1710434280. The cubic root of 53409364 is about 376.5931956142.

Adding to 53409364 its reverse (46390435), we get a palindrome (99799799).

The spelling of 53409364 in words is "fifty-three million, four hundred nine thousand, three hundred sixty-four".