5281250 has 42 divisors (see below), whose sum is σ = 10722519. Its totient is φ = 1950000.

The previous prime is 5281247. The next prime is 5281273. The reversal of 5281250 is 521825.

It can be written as a sum of positive squares in 11 ways, for example, as 5276209 + 5041 = 2297^2 + 71^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1625.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 406244 + ... + 406256.

Almost surely, 2^5281250 is an apocalyptic number.

5281250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5281250 is an abundant number, since it is smaller than the sum of its proper divisors (5441269).

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

5281250 is an frugal number, since it uses more digits than its factorization.

5281250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5281250 is about 2298.0970388563. The cubic root of 5281250 is about 174.1454941971.

Multiplying 5281250 by its product of nonzero digits (800), we get a square (4225000000 = 65000²).

The spelling of 5281250 in words is "five million, two hundred eighty-one thousand, two hundred fifty".