52488020 has 72 divisors (see below), whose sum is σ = 122022936. Its totient is φ = 18949632.

The previous prime is 52488011. The next prime is 52488031. The reversal of 52488020 is 2088425.

It can be written as a sum of positive squares in 12 ways, for example, as 10523536 + 41964484 = 3244^2 + 6478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178994 + ... + 179286.

It is an arithmetic number, because the mean of its divisors is an integer number (1694763).

Almost surely, 2^52488020 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 52488020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61011468).

52488020 is an abundant number, since it is smaller than the sum of its proper divisors (69534916).

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

52488020 is a wasteful number, since it uses less digits than its factorization.

52488020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 52488020 is about 7244.8616273881. The cubic root of 52488020 is about 374.4151357050.

It can be divided in two parts, 524880 and 20, that multiplied together give a square (10497600 = 3240²).

The spelling of 52488020 in words is "fifty-two million, four hundred eighty-eight thousand, twenty".