5621256904567 has 2 divisors, whose sum is σ = 5621256904568. Its totient is φ = 5621256904566.

The previous prime is 5621256904541. The next prime is 5621256904577. The reversal of 5621256904567 is 7654096521265.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5621256904567 - 2¹¹ = 5621256902519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5621256904577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2810628452283 + 2810628452284.

It is an arithmetic number, because the mean of its divisors is an integer number (2810628452284).

Almost surely, 2^{5621256904567} is an apocalyptic number.

5621256904567 is a deficient number, since it is larger than the sum of its proper divisors (1).

5621256904567 is an equidigital number, since it uses as much as digits as its factorization.

5621256904567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216000, while the sum is 58.

The spelling of 5621256904567 in words is "five trillion, six hundred twenty-one billion, two hundred fifty-six million, nine hundred four thousand, five hundred sixty-seven".