53403445 has 8 divisors (see below), whose sum is σ = 64856736. Its totient is φ = 42207696.

The previous prime is 53403419. The next prime is 53403451. The reversal of 53403445 is 54430435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53403445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63927 + ... + 64756.

It is an arithmetic number, because the mean of its divisors is an integer number (8107092).

Almost surely, 2^53403445 is an apocalyptic number.

It is an amenable number.

53403445 is a deficient number, since it is larger than the sum of its proper divisors (11453291).

53403445 is a wasteful number, since it uses less digits than its factorization.

53403445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128771.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 53403445 is about 7307.7660745265. The cubic root of 53403445 is about 376.5792833380.

The spelling of 53403445 in words is "fifty-three million, four hundred three thousand, four hundred forty-five".