5005606421 has 2 divisors, whose sum is σ = 5005606422. Its totient is φ = 5005606420.

The previous prime is 5005606387. The next prime is 5005606439. The reversal of 5005606421 is 1246065005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4618697521 + 386908900 = 67961^2 + 19670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5005606421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5005606121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502803210 + 2502803211.

It is an arithmetic number, because the mean of its divisors is an integer number (2502803211).

Almost surely, 2^5005606421 is an apocalyptic number.

It is an amenable number.

5005606421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5005606421 is an equidigital number, since it uses as much as digits as its factorization.

5005606421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5005606421 is about 70750.3103950788. The cubic root of 5005606421 is about 1710.6148309497.

The spelling of 5005606421 in words is "five billion, five million, six hundred six thousand, four hundred twenty-one".