53442013 has 4 divisors (see below), whose sum is σ = 53639488. Its totient is φ = 53244540.

The previous prime is 53441977. The next prime is 53442017. The reversal of 53442013 is 31024435.

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 not a de Polignac number, because 53442013 - 2²¹ = 51344861 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 (53442017) 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, 98331 + ... + 98872.

It is an arithmetic number, because the mean of its divisors is an integer number (13409872).

Almost surely, 2^53442013 is an apocalyptic number.

It is an amenable number.

53442013 is a deficient number, since it is larger than the sum of its proper divisors (197475).

53442013 is a wasteful number, since it uses less digits than its factorization.

53442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197474.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 53442013 is about 7310.4044347765. The cubic root of 53442013 is about 376.6699167844.

Adding to 53442013 its reverse (31024435), we get a palindrome (84466448).

The spelling of 53442013 in words is "fifty-three million, four hundred forty-two thousand, thirteen".