53408893 has 4 divisors (see below), whose sum is σ = 53461728. Its totient is φ = 53356060.

The previous prime is 53408891. The next prime is 53408897. The reversal of 53408893 is 39880435.

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 53408893 - 2¹ = 53408891 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 (53408891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24871 + ... + 26932.

It is an arithmetic number, because the mean of its divisors is an integer number (13365432).

Almost surely, 2^53408893 is an apocalyptic number.

It is an amenable number.

53408893 is a deficient number, since it is larger than the sum of its proper divisors (52835).

53408893 is a wasteful number, since it uses less digits than its factorization.

53408893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52834.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 53408893 is about 7308.1388191522. The cubic root of 53408893 is about 376.5920885929.

The spelling of 53408893 in words is "fifty-three million, four hundred eight thousand, eight hundred ninety-three".