53504429 has 4 divisors (see below), whose sum is σ = 58368480. Its totient is φ = 48640380.

The previous prime is 53504411. The next prime is 53504431. The reversal of 53504429 is 92440535.

It is a happy number.

53504429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53504429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53504395 and 53504404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53504029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2432009 + ... + 2432030.

It is an arithmetic number, because the mean of its divisors is an integer number (14592120).

Almost surely, 2^53504429 is an apocalyptic number.

It is an amenable number.

53504429 is a deficient number, since it is larger than the sum of its proper divisors (4864051).

53504429 is a wasteful number, since it uses less digits than its factorization.

53504429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864050.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 53504429 is about 7314.6721731052. The cubic root of 53504429 is about 376.8164998530.

It can be divided in two parts, 5350 and 4429, that added together give a palindrome (9779).

The spelling of 53504429 in words is "fifty-three million, five hundred four thousand, four hundred twenty-nine".