53147479 has 16 divisors (see below), whose sum is σ = 66422016. Its totient is φ = 41313600.

The previous prime is 53147477. The next prime is 53147537. The reversal of 53147479 is 97474135.

It is a cyclic number.

It is not a de Polignac number, because 53147479 - 2¹ = 53147477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53147477) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58144 + ... + 59050.

It is an arithmetic number, because the mean of its divisors is an integer number (4151376).

Almost surely, 2^53147479 is an apocalyptic number.

53147479 is a deficient number, since it is larger than the sum of its proper divisors (13274537).

53147479 is a wasteful number, since it uses less digits than its factorization.

53147479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its digits is 105840, while the sum is 40.

The square root of 53147479 is about 7290.2317521462. The cubic root of 53147479 is about 375.9766636150.

The spelling of 53147479 in words is "fifty-three million, one hundred forty-seven thousand, four hundred seventy-nine".