5653421651 has 4 divisors (see below), whose sum is σ = 5653808952. Its totient is φ = 5653034352.

The previous prime is 5653421611. The next prime is 5653421663. The reversal of 5653421651 is 1561243565.

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

It is a cyclic number.

It is not a de Polignac number, because 5653421651 - 2¹⁰ = 5653420627 is a prime.

It is a super-2 number, since 2×5653421651² = 63922352727991131602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5653421611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170861 + ... + 201246.

It is an arithmetic number, because the mean of its divisors is an integer number (1413452238).

Almost surely, 2^5653421651 is an apocalyptic number.

5653421651 is a deficient number, since it is larger than the sum of its proper divisors (387301).

5653421651 is a wasteful number, since it uses less digits than its factorization.

5653421651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387300.

The product of its digits is 108000, while the sum is 38.

The square root of 5653421651 is about 75189.2389308470. The cubic root of 5653421651 is about 1781.4369631007.

The spelling of 5653421651 in words is "five billion, six hundred fifty-three million, four hundred twenty-one thousand, six hundred fifty-one".