528370000 has 50 divisors (see below), whose sum is σ = 1279260818. Its totient is φ = 211344000.

The previous prime is 528369991. The next prime is 528370009. The reversal of 528370000 is 73825.

It is an interprime number because it is at equal distance from previous prime (528369991) and next prime (528370009).

It can be written as a sum of positive squares in 5 ways, for example, as 396487744 + 131882256 = 19912^2 + 11484^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528370009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16419 + ... + 36418.

Almost surely, 2^528370000 is an apocalyptic number.

528370000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

528370000 is an abundant number, since it is smaller than the sum of its proper divisors (750890818).

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

528370000 is an equidigital number, since it uses as much as digits as its factorization.

528370000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52865 (or 52844 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 528370000 is about 22986.3002677682. The cubic root of 528370000 is about 808.4367553457.

The spelling of 528370000 in words is "five hundred twenty-eight million, three hundred seventy thousand".