52137280 has 112 divisors (see below), whose sum is σ = 136209024. Its totient is φ = 18892800.

The previous prime is 52137277. The next prime is 52137287. The reversal of 52137280 is 8273125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52137287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345205 + ... + 345355.

It is an arithmetic number, because the mean of its divisors is an integer number (1216152).

Almost surely, 2^52137280 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 52137280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68104512).

52137280 is an abundant number, since it is smaller than the sum of its proper divisors (84071744).

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

52137280 is a wasteful number, since it uses less digits than its factorization.

52137280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 52137280 is about 7220.6149322617. The cubic root of 52137280 is about 373.5792880410.

The spelling of 52137280 in words is "fifty-two million, one hundred thirty-seven thousand, two hundred eighty".