2725569 has 80 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 1283040.

The previous prime is 2725561. The next prime is 2725571. The reversal of 2725569 is 9655272.

It is not a de Polignac number, because 2725569 - 2³ = 2725561 is a prime.

It is a super-2 number, since 2×2725569² = 14857452747522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (37800) is a multiple of the sum of its prime divisors (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725561) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 118492 + ... + 118514.

It is an arithmetic number, because the mean of its divisors is an integer number (69696).

2^2725569 is an apocalyptic number.

It is an amenable number.

2725569 is an abundant number, since it is smaller than the sum of its proper divisors (2850111).

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

2725569 is a wasteful number, since it uses less digits than its factorization.

2725569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 63 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 2725569 is about 1650.9297380567. The cubic root of 2725569 is about 139.6858431856.

The spelling of 2725569 in words is "two million, seven hundred twenty-five thousand, five hundred sixty-nine".