525878280 has 48 divisors (see below), whose sum is σ = 1709105580. Its totient is φ = 140234112.

The previous prime is 525878263. The next prime is 525878281. The reversal of 525878280 is 82878525.

It can be written as a sum of positive squares in 2 ways, for example, as 509766084 + 16112196 = 22578^2 + 4014^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (525878281) 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 11 ways as a sum of consecutive naturals, for example, 730027 + ... + 730746.

Almost surely, 2^525878280 is an apocalyptic number.

It is an amenable number.

525878280 is an abundant number, since it is smaller than the sum of its proper divisors (1183227300).

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

525878280 is a wasteful number, since it uses less digits than its factorization.

525878280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460790 (or 1460783 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 525878280 is about 22932.0361067220. The cubic root of 525878280 is about 807.1639270276.

It can be divided in two parts, 5258 and 78280, that added together give a palindrome (83538).

The spelling of 525878280 in words is "five hundred twenty-five million, eight hundred seventy-eight thousand, two hundred eighty".