53440514 has 16 divisors (see below), whose sum is σ = 82300536. Its totient is φ = 26016000.

The previous prime is 53440511. The next prime is 53440553. The reversal of 53440514 is 41504435.

It can be written as a sum of positive squares in 4 ways, for example, as 29106025 + 24334489 = 5395^2 + 4933^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53440511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10154 + ... + 14490.

Almost surely, 2^53440514 is an apocalyptic number.

53440514 is a deficient number, since it is larger than the sum of its proper divisors (28860022).

53440514 is a wasteful number, since it uses less digits than its factorization.

53440514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 53440514 is about 7310.3019089501. The cubic root of 53440514 is about 376.6663950016. Note that the first 3 decimals are identical.

Adding to 53440514 its reverse (41504435), we get a palindrome (94944949).

The spelling of 53440514 in words is "fifty-three million, four hundred forty thousand, five hundred fourteen".