21214025054459 has 2 divisors, whose sum is σ = 21214025054460. Its totient is φ = 21214025054458.

The previous prime is 21214025054419. The next prime is 21214025054477. The reversal of 21214025054459 is 95445052041212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21214025054459 is a prime.

It is a super-3 number, since 3×21214025054459³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (21214025054419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607012527229 + 10607012527230.

It is an arithmetic number, because the mean of its divisors is an integer number (10607012527230).

Almost surely, 2^{21214025054459} is an apocalyptic number.

21214025054459 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214025054459 is an equidigital number, since it uses as much as digits as its factorization.

21214025054459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 21214025054459 in words is "twenty-one trillion, two hundred fourteen billion, twenty-five million, fifty-four thousand, four hundred fifty-nine".