52140480 has 112 divisors (see below), whose sum is σ = 189219840. Its totient is φ = 11916288.

The previous prime is 52140461. The next prime is 52140497. The reversal of 52140480 is 8404125.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 52140480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2841 + ... + 10599.

Almost surely, 2^52140480 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 52140480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94609920).

52140480 is an abundant number, since it is smaller than the sum of its proper divisors (137079360).

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

52140480 is a wasteful number, since it uses less digits than its factorization.

52140480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52140480 is about 7220.8365166371. The cubic root of 52140480 is about 373.5869308721.

The spelling of 52140480 in words is "fifty-two million, one hundred forty thousand, four hundred eighty".