216057007 has 2 divisors, whose sum is σ = 216057008. Its totient is φ = 216057006.

The previous prime is 216056993. The next prime is 216057019. The reversal of 216057007 is 700750612.

216057007 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 is a cyclic number.

It is not a de Polignac number, because 216057007 - 2¹⁵ = 216024239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216057067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108028503 + 108028504.

It is an arithmetic number, because the mean of its divisors is an integer number (108028504).

Almost surely, 2^216057007 is an apocalyptic number.

216057007 is a deficient number, since it is larger than the sum of its proper divisors (1).

216057007 is an equidigital number, since it uses as much as digits as its factorization.

216057007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 216057007 is about 14698.8777462771. The cubic root of 216057007 is about 600.0527796163.

The spelling of 216057007 in words is "two hundred sixteen million, fifty-seven thousand, seven".