7050521 has 2 divisors, whose sum is σ = 7050522. Its totient is φ = 7050520.

The previous prime is 7050499. The next prime is 7050553. The reversal of 7050521 is 1250507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 290521 = 2600^2 + 539^2 .

It is an emirp because it is prime and its reverse (1250507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7050521 is a prime.

It is a Chen prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 7050493 and 7050502.

It is not a weakly prime, because it can be changed into another prime (7050721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525260 + 3525261.

It is an arithmetic number, because the mean of its divisors is an integer number (3525261).

Almost surely, 2^7050521 is an apocalyptic number.

It is an amenable number.

7050521 is a deficient number, since it is larger than the sum of its proper divisors (1).

7050521 is an equidigital number, since it uses as much as digits as its factorization.

7050521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 7050521 is about 2655.2817176337. The cubic root of 7050521 is about 191.7522212465.

It can be divided in two parts, 70 and 50521, that multiplied together give a triangular number (3536470 = T₂₆₅₉).

The spelling of 7050521 in words is "seven million, fifty thousand, five hundred twenty-one".