2956258021 has 2 divisors, whose sum is σ = 2956258022. Its totient is φ = 2956258020.

The previous prime is 2956257979. The next prime is 2956258037. The reversal of 2956258021 is 1208526592.

2956258021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2850064996 + 106193025 = 53386^2 + 10305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2956258021 - 2⁹ = 2956257509 is a prime.

It is a super-2 number, since 2×2956258021² = 17478922973453672882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2956258321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1478129010 + 1478129011.

It is an arithmetic number, because the mean of its divisors is an integer number (1478129011).

Almost surely, 2^2956258021 is an apocalyptic number.

It is an amenable number.

2956258021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2956258021 is an equidigital number, since it uses as much as digits as its factorization.

2956258021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2956258021 is about 54371.4816884734. The cubic root of 2956258021 is about 1435.2055731421.

The spelling of 2956258021 in words is "two billion, nine hundred fifty-six million, two hundred fifty-eight thousand, twenty-one".