2731625 has 24 divisors (see below), whose sum is σ = 3763032. Its totient is φ = 1968000.

The previous prime is 2731621. The next prime is 2731637. The reversal of 2731625 is 5261372.

2731625 = 8³ + 9³ + ... + 57³.

It can be written as a sum of positive squares in 12 ways, for example, as 2637376 + 94249 = 1624^2 + 307^2 .

It is not a de Polignac number, because 2731625 - 2² = 2731621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2731594 and 2731603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66605 + ... + 66645.

It is an arithmetic number, because the mean of its divisors is an integer number (156793).

2^2731625 is an apocalyptic number.

2731625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2731625 is a deficient number, since it is larger than the sum of its proper divisors (1031407).

2731625 is an equidigital number, since it uses as much as digits as its factorization.

2731625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 59 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 2731625 is about 1652.7628384012. The cubic root of 2731625 is about 139.7892236422.

Adding to 2731625 its reverse (5261372), we get a palindrome (7992997).

The spelling of 2731625 in words is "two million, seven hundred thirty-one thousand, six hundred twenty-five".