525067840 has 112 divisors (see below), whose sum is σ = 1396105920. Its totient is φ = 186439680.

The previous prime is 525067819. The next prime is 525067841. The reversal of 525067840 is 48760525.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 525067840.

It is not an unprimeable number, because it can be changed into a prime (525067841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149626 + ... + 153094.

Almost surely, 2^525067840 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 525067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698052960).

525067840 is an abundant number, since it is smaller than the sum of its proper divisors (871038080).

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

525067840 is a wasteful number, since it uses less digits than its factorization.

525067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 525067840 is about 22914.3588171260. The cubic root of 525067840 is about 806.7490691345.

The spelling of 525067840 in words is "five hundred twenty-five million, sixty-seven thousand, eight hundred forty".