52280280 has 96 divisors (see below), whose sum is σ = 182997360. Its totient is φ = 12867840.

The previous prime is 52280273. The next prime is 52280281. The reversal of 52280280 is 8208225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52280281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906 + ... + 10265.

Almost surely, 2^52280280 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 52280280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91498680).

52280280 is an abundant number, since it is smaller than the sum of its proper divisors (130717080).

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

52280280 is a wasteful number, since it uses less digits than its factorization.

52280280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201 (or 11194 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 52280280 is about 7230.5103554314. The cubic root of 52280280 is about 373.9205222558.

The spelling of 52280280 in words is "fifty-two million, two hundred eighty thousand, two hundred eighty".