4547500421 has 2 divisors, whose sum is σ = 4547500422. Its totient is φ = 4547500420.

The previous prime is 4547500409. The next prime is 4547500483. The reversal of 4547500421 is 1240057454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4118430625 + 429069796 = 64175^2 + 20714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4547500421 - 2²⁶ = 4480391557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4547500021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273750210 + 2273750211.

It is an arithmetic number, because the mean of its divisors is an integer number (2273750211).

Almost surely, 2^4547500421 is an apocalyptic number.

It is an amenable number.

4547500421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4547500421 is an equidigital number, since it uses as much as digits as its factorization.

4547500421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 4547500421 is about 67435.1571585623. The cubic root of 4547500421 is about 1656.7523017961.

Adding to 4547500421 its reverse (1240057454), we get a palindrome (5787557875).

The spelling of 4547500421 in words is "four billion, five hundred forty-seven million, five hundred thousand, four hundred twenty-one".