2625202221 has 16 divisors (see below), whose sum is σ = 3655526784. Its totient is φ = 1672634304.

The previous prime is 2625202213. The next prime is 2625202253. The reversal of 2625202221 is 1222025262.

It is a happy number.

2625202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2625202221 - 2³ = 2625202213 is a prime.

It is a super-2 number, since 2×2625202221² = 13783373402286665682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2625202191 and 2625202200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625202291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69975 + ... + 100731.

It is an arithmetic number, because the mean of its divisors is an integer number (228470424).

Almost surely, 2^2625202221 is an apocalyptic number.

It is an amenable number.

2625202221 is a deficient number, since it is larger than the sum of its proper divisors (1030324563).

2625202221 is a wasteful number, since it uses less digits than its factorization.

2625202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32020.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2625202221 is about 51236.7272666785. The cubic root of 2625202221 is about 1379.4975102909.

Adding to 2625202221 its reverse (1222025262), we get a palindrome (3847227483).

The spelling of 2625202221 in words is "two billion, six hundred twenty-five million, two hundred two thousand, two hundred twenty-one".