53404319 has 4 divisors (see below), whose sum is σ = 53439120. Its totient is φ = 53369520.

The previous prime is 53404303. The next prime is 53404339. The reversal of 53404319 is 91340435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53404319 - 2⁴ = 53404303 is a prime.

It is a super-3 number, since 3×53404319³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53404291 and 53404300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14987 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (13359780).

Almost surely, 2^53404319 is an apocalyptic number.

53404319 is a deficient number, since it is larger than the sum of its proper divisors (34801).

53404319 is a wasteful number, since it uses less digits than its factorization.

53404319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34800.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 53404319 is about 7307.8258736782. The cubic root of 53404319 is about 376.5813376905.

The spelling of 53404319 in words is "fifty-three million, four hundred four thousand, three hundred nineteen".