53404205 has 4 divisors (see below), whose sum is σ = 64085052. Its totient is φ = 42723360.

The previous prime is 53404201. The next prime is 53404207. The reversal of 53404205 is 50240435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20376196 + 33028009 = 4514^2 + 5747^2 .

It is not a de Polignac number, because 53404205 - 2² = 53404201 is a prime.

It is a super-2 number, since 2×53404205² = 5704018223364050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340416 + ... + 5340425.

It is an arithmetic number, because the mean of its divisors is an integer number (16021263).

Almost surely, 2^53404205 is an apocalyptic number.

It is an amenable number.

53404205 is a deficient number, since it is larger than the sum of its proper divisors (10680847).

53404205 is a wasteful number, since it uses less digits than its factorization.

53404205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680846.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 53404205 is about 7307.8180738166. The cubic root of 53404205 is about 376.5810697327.

The spelling of 53404205 in words is "fifty-three million, four hundred four thousand, two hundred five".