53421171 has 4 divisors (see below), whose sum is σ = 71228232. Its totient is φ = 35614112.

The previous prime is 53421169. The next prime is 53421209. The reversal of 53421171 is 17112435.

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

It is a cyclic number.

It is not a de Polignac number, because 53421171 - 2¹ = 53421169 is a prime.

It is a super-2 number, since 2×53421171² = 5707643022022482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53421971) 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, 8903526 + ... + 8903531.

It is an arithmetic number, because the mean of its divisors is an integer number (17807058).

Almost surely, 2^53421171 is an apocalyptic number.

53421171 is a deficient number, since it is larger than the sum of its proper divisors (17807061).

53421171 is a wasteful number, since it uses less digits than its factorization.

53421171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17807060.

The product of its digits is 840, while the sum is 24.

The square root of 53421171 is about 7308.9787932378. The cubic root of 53421171 is about 376.6209442330.

The spelling of 53421171 in words is "fifty-three million, four hundred twenty-one thousand, one hundred seventy-one".