53533405 has 4 divisors (see below), whose sum is σ = 64240092. Its totient is φ = 42826720.

The previous prime is 53533399. The next prime is 53533429. The reversal of 53533405 is 50433535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50433535 = 5 ⋅10086707.

It can be written as a sum of positive squares in 2 ways, for example, as 20666116 + 32867289 = 4546^2 + 5733^2 .

It is not a de Polignac number, because 53533405 - 2¹⁷ = 53402333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5353336 + ... + 5353345.

It is an arithmetic number, because the mean of its divisors is an integer number (16060023).

Almost surely, 2^53533405 is an apocalyptic number.

It is an amenable number.

53533405 is a deficient number, since it is larger than the sum of its proper divisors (10706687).

53533405 is a wasteful number, since it uses less digits than its factorization.

53533405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706686.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 53533405 is about 7316.6525816113. The cubic root of 53533405 is about 376.8845108236.

The spelling of 53533405 in words is "fifty-three million, five hundred thirty-three thousand, four hundred five".