52321648 has 40 divisors (see below), whose sum is σ = 108140400. Its totient is φ = 24437760.

The previous prime is 52321639. The next prime is 52321657. The reversal of 52321648 is 84612325.

It is an interprime number because it is at equal distance from previous prime (52321639) and next prime (52321657).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39883 + ... + 41173.

It is an arithmetic number, because the mean of its divisors is an integer number (2703510).

Almost surely, 2^52321648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52321648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54070200).

52321648 is an abundant number, since it is smaller than the sum of its proper divisors (55818752).

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

52321648 is a wasteful number, since it uses less digits than its factorization.

52321648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1459 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 52321648 is about 7233.3704453733. The cubic root of 52321648 is about 374.0191207207.

The spelling of 52321648 in words is "fifty-two million, three hundred twenty-one thousand, six hundred forty-eight".