2725650 has 60 divisors (see below), whose sum is σ = 7584522. Its totient is φ = 725760.

The previous prime is 2725649. The next prime is 2725669. The reversal of 2725650 is 565272.

2725650 is a `hidden beast` number, since 2 + 7 + 2 + 5 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1798281 + 927369 = 1341^2 + 963^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3714 + ... + 4386.

2^2725650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2725650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792261).

2725650 is an abundant number, since it is smaller than the sum of its proper divisors (4858872).

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

2725650 is a wasteful number, since it uses less digits than its factorization.

2725650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2725650 is about 1650.9542695060. The cubic root of 2725650 is about 139.6872269262.

It can be divided in two parts, 2725 and 650, that added together give a cube (3375 = 15³).

The spelling of 2725650 in words is "two million, seven hundred twenty-five thousand, six hundred fifty".