2213725 has 12 divisors (see below), whose sum is σ = 2784916. Its totient is φ = 1745280.

The previous prime is 2213711. The next prime is 2213759. The reversal of 2213725 is 5273122.

It can be written as a sum of positive squares in 6 ways, for example, as 334084 + 1879641 = 578^2 + 1371^2 .

It is not a de Polignac number, because 2213725 - 2¹⁵ = 2180957 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213696 and 2213705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1219 + ... + 2431.

2^2213725 is an apocalyptic number.

2213725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2213725 is a deficient number, since it is larger than the sum of its proper divisors (571191).

2213725 is a wasteful number, since it uses less digits than its factorization.

2213725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1291 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 2213725 is about 1487.8592003278. The cubic root of 2213725 is about 130.3290480876.

Adding to 2213725 its reverse (5273122), we get a palindrome (7486847).

The spelling of 2213725 in words is "two million, two hundred thirteen thousand, seven hundred twenty-five".