53013481 has 4 divisors (see below), whose sum is σ = 53067652. Its totient is φ = 52959312.

The previous prime is 53013469. The next prime is 53013487. The reversal of 53013481 is 18431035.

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 39175081 + 13838400 = 6259^2 + 3720^2 .

It is a cyclic number.

It is not a de Polignac number, because 53013481 - 2⁹ = 53012969 is a prime.

It is a super-2 number, since 2×53013481² = 5620858335474722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53013487) 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, 25590 + ... + 27583.

It is an arithmetic number, because the mean of its divisors is an integer number (13266913).

Almost surely, 2^53013481 is an apocalyptic number.

It is an amenable number.

53013481 is a deficient number, since it is larger than the sum of its proper divisors (54171).

53013481 is an equidigital number, since it uses as much as digits as its factorization.

53013481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54170.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 53013481 is about 7281.0357092930. The cubic root of 53013481 is about 375.6604208280.

The spelling of 53013481 in words is "fifty-three million, thirteen thousand, four hundred eighty-one".