52621824 has 40 divisors (see below), whose sum is σ = 140191920. Its totient is φ = 17540096.

The previous prime is 52621813. The next prime is 52621841. The reversal of 52621824 is 42812625.

It is a super-2 number, since 2×52621824² = 5538112722173952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52621791 and 52621800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15594 + ... + 18665.

It is an arithmetic number, because the mean of its divisors is an integer number (3504798).

Almost surely, 2^52621824 is an apocalyptic number.

It is an amenable number.

52621824 is an abundant number, since it is smaller than the sum of its proper divisors (87570096).

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

52621824 is an equidigital number, since it uses as much as digits as its factorization.

52621824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34280 (or 34264 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 52621824 is about 7254.0901565944. The cubic root of 52621824 is about 374.7330224175.

The spelling of 52621824 in words is "fifty-two million, six hundred twenty-one thousand, eight hundred twenty-four".