5270921 has 2 divisors, whose sum is σ = 5270922. Its totient is φ = 5270920.

The previous prime is 5270873. The next prime is 5270929. The reversal of 5270921 is 1290725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4687225 + 583696 = 2165^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5270921 - 2¹⁴ = 5254537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (5270929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2635460 + 2635461.

It is an arithmetic number, because the mean of its divisors is an integer number (2635461).

Almost surely, 2^5270921 is an apocalyptic number.

It is an amenable number.

5270921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5270921 is an equidigital number, since it uses as much as digits as its factorization.

5270921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 5270921 is about 2295.8486448370. The cubic root of 5270921 is about 174.0318896059.

The spelling of 5270921 in words is "five million, two hundred seventy thousand, nine hundred twenty-one".