5653855421 has 4 divisors (see below), whose sum is σ = 5677315644. Its totient is φ = 5630395200.

The previous prime is 5653855409. The next prime is 5653855429. The reversal of 5653855421 is 1245583565.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1907068900 + 3746786521 = 43670^2 + 61211^2 .

It is a cyclic number.

It is not a de Polignac number, because 5653855421 - 2⁶ = 5653855357 is a prime.

It is a super-2 number, since 2×5653855421² = 63932162243142174482, 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 (5653855429) 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, 11729750 + ... + 11730231.

It is an arithmetic number, because the mean of its divisors is an integer number (1419328911).

Almost surely, 2^5653855421 is an apocalyptic number.

It is an amenable number.

5653855421 is a deficient number, since it is larger than the sum of its proper divisors (23460223).

5653855421 is a wasteful number, since it uses less digits than its factorization.

5653855421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23460222.

The product of its digits is 720000, while the sum is 44.

The square root of 5653855421 is about 75192.1233973346. The cubic root of 5653855421 is about 1781.4825233647.

The spelling of 5653855421 in words is "five billion, six hundred fifty-three million, eight hundred fifty-five thousand, four hundred twenty-one".