2725801 has 9 divisors (see below), whose sum is σ = 2975031. Its totient is φ = 2496312.

The previous prime is 2725783. The next prime is 2725817. The reversal of 2725801 is 1085272.

The square root of 2725801 is 1651.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 403225 + 2322576 = 635^2 + 1524^2 .

It is not a de Polignac number, because 2725801 - 2⁵ = 2725769 is a prime.

It is an Ulam number.

It is a Duffinian number.

2725801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2725841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21400 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (330559).

2^2725801 is an apocalyptic number.

2725801 is the 1651-st square number.

2725801 is the 826-th centered octagonal number.

It is an amenable number.

2725801 is a deficient number, since it is larger than the sum of its proper divisors (249230).

2725801 is an equidigital number, since it uses as much as digits as its factorization.

2725801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The cubic root of 2725801 is about 139.6898064188.

Multiplying 2725801 by its sum of digits (25), we get a square (68145025 = 8255²).

The spelling of 2725801 in words is "two million, seven hundred twenty-five thousand, eight hundred one".