5425216643 has 12 divisors (see below), whose sum is σ = 6884691192. Its totient is φ = 4227441120.

The previous prime is 5425216639. The next prime is 5425216651. The reversal of 5425216643 is 3466125245.

It is not a de Polignac number, because 5425216643 - 2² = 5425216639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5425216597 and 5425216606.

It is not an unprimeable number, because it can be changed into a prime (5425216603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5032130 + ... + 5033207.

It is an arithmetic number, because the mean of its divisors is an integer number (573724266).

Almost surely, 2^5425216643 is an apocalyptic number.

5425216643 is a deficient number, since it is larger than the sum of its proper divisors (1459474549).

5425216643 is a wasteful number, since it uses less digits than its factorization.

5425216643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065362 (or 10065355 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 5425216643 is about 73656.0699671113. The cubic root of 5425216643 is about 1757.1372886802.

The spelling of 5425216643 in words is "five billion, four hundred twenty-five million, two hundred sixteen thousand, six hundred forty-three".