53493938 has 4 divisors (see below), whose sum is σ = 80240910. Its totient is φ = 26746968.

The previous prime is 53493931. The next prime is 53493961. The reversal of 53493938 is 83939435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 8025889 = 6743^2 + 2833^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53493931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13373483 + ... + 13373486.

Almost surely, 2^53493938 is an apocalyptic number.

53493938 is a deficient number, since it is larger than the sum of its proper divisors (26746972).

53493938 is a wasteful number, since it uses less digits than its factorization.

53493938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26746971.

The product of its digits is 349920, while the sum is 44.

The square root of 53493938 is about 7313.9550176358. The cubic root of 53493938 is about 376.7918698651.

It can be divided in two parts, 5 and 3493938, that added together give a palindrome (3493943).

The spelling of 53493938 in words is "fifty-three million, four hundred ninety-three thousand, nine hundred thirty-eight".