525242280 has 32 divisors (see below), whose sum is σ = 1575727200. Its totient is φ = 140064576.

The previous prime is 525242261. The next prime is 525242339. The reversal of 525242280 is 82242525.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188390 + ... + 2188629.

It is an arithmetic number, because the mean of its divisors is an integer number (49241475).

Almost surely, 2^525242280 is an apocalyptic number.

It is an amenable number.

525242280 is an abundant number, since it is smaller than the sum of its proper divisors (1050484920).

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

525242280 is a wasteful number, since it uses less digits than its factorization.

525242280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377033 (or 4377029 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 525242280 is about 22918.1648479978. The cubic root of 525242280 is about 806.8383996396.

The spelling of 525242280 in words is "five hundred twenty-five million, two hundred forty-two thousand, two hundred eighty".