53321405 has 8 divisors (see below), whose sum is σ = 64027392. Its totient is φ = 42629328.

The previous prime is 53321377. The next prime is 53321407. The reversal of 53321405 is 50412335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53321405 - 2⁶ = 53321341 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 (53321407) 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 7 ways as a sum of consecutive naturals, for example, 9104 + ... + 13766.

It is an arithmetic number, because the mean of its divisors is an integer number (8003424).

Almost surely, 2^53321405 is an apocalyptic number.

It is an amenable number.

53321405 is a deficient number, since it is larger than the sum of its proper divisors (10705987).

53321405 is a wasteful number, since it uses less digits than its factorization.

53321405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53321405 is about 7302.1507105784. The cubic root of 53321405 is about 376.3863469815.

The spelling of 53321405 in words is "fifty-three million, three hundred twenty-one thousand, four hundred five".