525775000 has 48 divisors (see below), whose sum is σ = 1232264880. Its totient is φ = 210300000.

The previous prime is 525774967. The next prime is 525775007. The reversal of 525775000 is 577525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525775007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14485 + ... + 35515.

It is an arithmetic number, because the mean of its divisors is an integer number (25672185).

Almost surely, 2^525775000 is an apocalyptic number.

525775000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525775000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616132440).

525775000 is an abundant number, since it is smaller than the sum of its proper divisors (706489880).

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

525775000 is an equidigital number, since it uses as much as digits as its factorization.

525775000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21062 (or 21038 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 525775000 is about 22929.7841245835. The cubic root of 525775000 is about 807.1110825123. Note that the first 3 decimals are identical.

The spelling of 525775000 in words is "five hundred twenty-five million, seven hundred seventy-five thousand".