525449650320 has 1440 divisors, whose sum is σ = 2298668875776. Its totient is φ = 109137715200.

The previous prime is 525449650283. The next prime is 525449650331. The reversal of 525449650320 is 23056944525.

525449650320 is a `hidden beast` number, since 5 + 2 + 54 + 4 + 96 + 503 + 2 + 0 = 666.

It is a super-2 number, since 2×525449650320² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1219140505 + ... + 1219140935.

Almost surely, 2^525449650320 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 525449650320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149334437888).

525449650320 is an abundant number, since it is smaller than the sum of its proper divisors (1773219225456).

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

525449650320 is a wasteful number, since it uses less digits than its factorization.

525449650320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 525449650320 in words is "five hundred twenty-five billion, four hundred forty-nine million, six hundred fifty thousand, three hundred twenty".