5625000 has 96 divisors (see below), whose sum is σ = 19042920. Its totient is φ = 1500000.

The previous prime is 5624989. The next prime is 5625017. The reversal of 5625000 is 5265.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 4 ways, for example, as 3392964 + 2232036 = 1842^2 + 1494^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124998 + ... + 1125002.

Almost surely, 2^5625000 is an apocalyptic number.

5625000 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 5625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9521460).

5625000 is an abundant number, since it is smaller than the sum of its proper divisors (13417920).

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

5625000 is an frugal number, since it uses more digits than its factorization.

5625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5625000 is about 2371.7082451263. The cubic root of 5625000 is about 177.8446652245.

The spelling of 5625000 in words is "five million, six hundred twenty-five thousand".