5653421807 has 4 divisors (see below), whose sum is σ = 6167369256. Its totient is φ = 5139474360.

The previous prime is 5653421759. The next prime is 5653421821. The reversal of 5653421807 is 7081243565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5653421807 is a prime.

It is a super-2 number, since 2×5653421807² = 63922356255726290498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5653421887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256973708 + ... + 256973729.

It is an arithmetic number, because the mean of its divisors is an integer number (1541842314).

Almost surely, 2^5653421807 is an apocalyptic number.

5653421807 is a deficient number, since it is larger than the sum of its proper divisors (513947449).

5653421807 is a wasteful number, since it uses less digits than its factorization.

5653421807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513947448.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 5653421807 is about 75189.2399682295. The cubic root of 5653421807 is about 1781.4369794863.

The spelling of 5653421807 in words is "five billion, six hundred fifty-three million, four hundred twenty-one thousand, eight hundred seven".