525475000 has 48 divisors (see below), whose sum is σ = 1231561800. Its totient is φ = 210180000.

The previous prime is 525474979. The next prime is 525475021. The reversal of 525475000 is 574525.

It is an interprime number because it is at equal distance from previous prime (525474979) and next prime (525475021).

It is a super-2 number, since 2×525475000² = 552247951250000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525475000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14491 + ... + 35509.

Almost surely, 2^525475000 is an apocalyptic number.

525475000 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 525475000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615780900).

525475000 is an abundant number, since it is smaller than the sum of its proper divisors (706086800).

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

525475000 is an equidigital number, since it uses as much as digits as its factorization.

525475000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21050 (or 21026 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 525475000 is about 22923.2414810820. The cubic root of 525475000 is about 806.9575444703.

The spelling of 525475000 in words is "five hundred twenty-five million, four hundred seventy-five thousand".