52644624 has 20 divisors (see below), whose sum is σ = 135998736. Its totient is φ = 17548192.

The previous prime is 52644623. The next prime is 52644629. The reversal of 52644624 is 42644625.

It is a super-2 number, since 2×52644624² = 5542912872202752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52644623) 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, 548334 + ... + 548429.

Almost surely, 2^52644624 is an apocalyptic number.

It is an amenable number.

52644624 is an abundant number, since it is smaller than the sum of its proper divisors (83354112).

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

52644624 is a wasteful number, since it uses less digits than its factorization.

52644624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096774 (or 1096768 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 52644624 is about 7255.6615136044. The cubic root of 52644624 is about 374.7871360823.

Subtracting from 52644624 its reverse (42644625), we obtain a palindrome (9999999).

It can be divided in two parts, 526 and 44624, that added together give a triangular number (45150 = T₃₀₀).

The spelling of 52644624 in words is "fifty-two million, six hundred forty-four thousand, six hundred twenty-four".