5421550109 has 2 divisors, whose sum is σ = 5421550110. Its totient is φ = 5421550108.

The previous prime is 5421550073. The next prime is 5421550111. The reversal of 5421550109 is 9010551245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2809318009 + 2612232100 = 53003^2 + 51110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5421550109 is a prime.

Together with 5421550111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5421550129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710775054 + 2710775055.

It is an arithmetic number, because the mean of its divisors is an integer number (2710775055).

Almost surely, 2^5421550109 is an apocalyptic number.

It is an amenable number.

5421550109 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421550109 is an equidigital number, since it uses as much as digits as its factorization.

5421550109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 5421550109 is about 73631.1762027472. The cubic root of 5421550109 is about 1756.7413563790.

The spelling of 5421550109 in words is "five billion, four hundred twenty-one million, five hundred fifty thousand, one hundred nine".