7055021 has 2 divisors, whose sum is σ = 7055022. Its totient is φ = 7055020.

The previous prime is 7055003. The next prime is 7055047. The reversal of 7055021 is 1205507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 346921 = 2590^2 + 589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7055021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7054984 and 7055002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7055071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3527510 + 3527511.

It is an arithmetic number, because the mean of its divisors is an integer number (3527511).

Almost surely, 2^7055021 is an apocalyptic number.

It is an amenable number.

7055021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7055021 is an equidigital number, since it uses as much as digits as its factorization.

7055021 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 7055021 is about 2656.1289501830. The cubic root of 7055021 is about 191.7930079005.

The spelling of 7055021 in words is "seven million, fifty-five thousand, twenty-one".