53482821 has 16 divisors (see below), whose sum is σ = 81600000. Its totient is φ = 30523248.

The previous prime is 53482813. The next prime is 53482823. The reversal of 53482821 is 12828435.

It is not a de Polignac number, because 53482821 - 2³ = 53482813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53482823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30630 + ... + 32328.

It is an arithmetic number, because the mean of its divisors is an integer number (5100000).

Almost surely, 2^53482821 is an apocalyptic number.

It is an amenable number.

53482821 is a deficient number, since it is larger than the sum of its proper divisors (28117179).

53482821 is a wasteful number, since it uses less digits than its factorization.

53482821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its digits is 15360, while the sum is 33.

The square root of 53482821 is about 7313.1949926144. The cubic root of 53482821 is about 376.7657666867.

The spelling of 53482821 in words is "fifty-three million, four hundred eighty-two thousand, eight hundred twenty-one".