1004532500 has 30 divisors (see below), whose sum is σ = 2196717138. Its totient is φ = 401812000.

The previous prime is 1004532493. The next prime is 1004532511. The reversal of 1004532500 is 52354001.

It can be written as a sum of positive squares in 5 ways, for example, as 722426884 + 282105616 = 26878^2 + 16796^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 198407 + ... + 203406.

Almost surely, 2^1004532500 is an apocalyptic number.

1004532500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004532500 is an abundant number, since it is smaller than the sum of its proper divisors (1192184638).

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

1004532500 is an equidigital number, since it uses as much as digits as its factorization.

1004532500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401837 (or 401820 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1004532500 is about 31694.3606971335. The cubic root of 1004532500 is about 1001.5085564464.

Adding to 1004532500 its reverse (52354001), we get a palindrome (1056886501).

The spelling of 1004532500 in words is "one billion, four million, five hundred thirty-two thousand, five hundred".