52276221 has 12 divisors (see below), whose sum is σ = 75597340. Its totient is φ = 34810560.

The previous prime is 52276193. The next prime is 52276229. The reversal of 52276221 is 12267225.

It can be written as a sum of positive squares in 2 ways, for example, as 42068196 + 10208025 = 6486^2 + 3195^2 .

It is not a de Polignac number, because 52276221 - 2⁶ = 52276157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52276229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6345 + ... + 12033.

Almost surely, 2^52276221 is an apocalyptic number.

It is an amenable number.

52276221 is a deficient number, since it is larger than the sum of its proper divisors (23321119).

52276221 is a wasteful number, since it uses less digits than its factorization.

52276221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716 (or 6713 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 52276221 is about 7230.2296644021. The cubic root of 52276221 is about 373.9108450398.

The spelling of 52276221 in words is "fifty-two million, two hundred seventy-six thousand, two hundred twenty-one".