5643387825 has 24 divisors (see below), whose sum is σ = 9340170048. Its totient is φ = 3006655680.

The previous prime is 5643387821. The next prime is 5643387833. The reversal of 5643387825 is 5287833465.

It is a happy number.

It is not a de Polignac number, because 5643387825 - 2² = 5643387821 is a prime.

It is a super-2 number, since 2×5643387825² = 63695652286716461250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5643387821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33619 + ... + 111431.

It is an arithmetic number, because the mean of its divisors is an integer number (389173752).

Almost surely, 2^5643387825 is an apocalyptic number.

It is an amenable number.

5643387825 is a deficient number, since it is larger than the sum of its proper divisors (3696782223).

5643387825 is a wasteful number, since it uses less digits than its factorization.

5643387825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78793 (or 78788 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The square root of 5643387825 is about 75122.4854820446. The cubic root of 5643387825 is about 1780.3824268787.

The spelling of 5643387825 in words is "five billion, six hundred forty-three million, three hundred eighty-seven thousand, eight hundred twenty-five".