5681250 has 72 divisors (see below), whose sum is σ = 15538068. Its totient is φ = 1500000.

The previous prime is 5681243. The next prime is 5681279. The reversal of 5681250 is 521865.

It can be written as a sum of positive squares in 6 ways, for example, as 21609 + 5659641 = 147^2 + 2379^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56200 + ... + 56300.

Almost surely, 2^5681250 is an apocalyptic number.

5681250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5681250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7769034).

5681250 is an abundant number, since it is smaller than the sum of its proper divisors (9856818).

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

5681250 is a wasteful number, since it uses less digits than its factorization.

5681250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 5681250 is about 2383.5372873106. The cubic root of 5681250 is about 178.4355156288.

The spelling of 5681250 in words is "five million, six hundred eighty-one thousand, two hundred fifty".