53315473 has 4 divisors (see below), whose sum is σ = 53655220. Its totient is φ = 52975728.

The previous prime is 53315467. The next prime is 53315513. The reversal of 53315473 is 37451335.

53315473 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5870929 + 47444544 = 2423^2 + 6888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53315473 is a prime.

It is a super-2 number, since 2×53315473² = 5685079322427458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53315413) 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, 169638 + ... + 169951.

It is an arithmetic number, because the mean of its divisors is an integer number (13413805).

Almost surely, 2^53315473 is an apocalyptic number.

It is an amenable number.

53315473 is a deficient number, since it is larger than the sum of its proper divisors (339747).

53315473 is a wasteful number, since it uses less digits than its factorization.

53315473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339746.

The product of its digits is 18900, while the sum is 31.

The square root of 53315473 is about 7301.7445175793. The cubic root of 53315473 is about 376.3723888183.

The spelling of 53315473 in words is "fifty-three million, three hundred fifteen thousand, four hundred seventy-three".