53402005 has 8 divisors (see below), whose sum is σ = 65291832. Its totient is φ = 41915328.

The previous prime is 53402003. The next prime is 53402009. The reversal of 53402005 is 50020435.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22953681 + 30448324 = 4791^2 + 5518^2 .

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 53402005 - 2¹ = 53402003 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 (53402003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100494 + ... + 101023.

It is an arithmetic number, because the mean of its divisors is an integer number (8161479).

Almost surely, 2^53402005 is an apocalyptic number.

It is an amenable number.

53402005 is a deficient number, since it is larger than the sum of its proper divisors (11889827).

53402005 is a wasteful number, since it uses less digits than its factorization.

53402005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201575.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53402005 is about 7307.6675485411. The cubic root of 53402005 is about 376.5758985436.

The spelling of 53402005 in words is "fifty-three million, four hundred two thousand, five".