53421208 has 16 divisors (see below), whose sum is σ = 106057080. Its totient is φ = 25139328.

The previous prime is 53421169. The next prime is 53421209. The reversal of 53421208 is 80212435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53421209) 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, 196266 + ... + 196537.

Almost surely, 2^53421208 is an apocalyptic number.

It is an amenable number.

53421208 is a deficient number, since it is larger than the sum of its proper divisors (52635872).

53421208 is a wasteful number, since it uses less digits than its factorization.

53421208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392826 (or 392822 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 53421208 is about 7308.9813243707. The cubic root of 53421208 is about 376.6210311834.

The spelling of 53421208 in words is "fifty-three million, four hundred twenty-one thousand, two hundred eight".