4625221 has 2 divisors, whose sum is σ = 4625222. Its totient is φ = 4625220.

The previous prime is 4625219. The next prime is 4625233. The reversal of 4625221 is 1225264.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 236196 = 2095^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 4625221 - 2¹ = 4625219 is a prime.

Together with 4625219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4625192 and 4625201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4625021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2312610 + 2312611.

It is an arithmetic number, because the mean of its divisors is an integer number (2312611).

Almost surely, 2^4625221 is an apocalyptic number.

It is an amenable number.

4625221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4625221 is an equidigital number, since it uses as much as digits as its factorization.

4625221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 4625221 is about 2150.6326976032. The cubic root of 4625221 is about 166.6137463095.

The spelling of 4625221 in words is "four million, six hundred twenty-five thousand, two hundred twenty-one".