53621064 has 48 divisors (see below), whose sum is σ = 165971520. Its totient is φ = 15320160.

The previous prime is 53621063. The next prime is 53621083. The reversal of 53621064 is 46012635.

It is not an unprimeable number, because it can be changed into a prime (53621063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52692 + ... + 53699.

It is an arithmetic number, because the mean of its divisors is an integer number (3457740).

Almost surely, 2^53621064 is an apocalyptic number.

It is an amenable number.

53621064 is an abundant number, since it is smaller than the sum of its proper divisors (112350456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53621064 is a wasteful number, since it uses less digits than its factorization.

53621064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106410 (or 106403 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53621064 is about 7322.6405073580. The cubic root of 53621064 is about 377.0901101950.

Adding to 53621064 its reverse (46012635), we get a palindrome (99633699).

The spelling of 53621064 in words is "fifty-three million, six hundred twenty-one thousand, sixty-four".