5654653021 has 4 divisors (see below), whose sum is σ = 5655301600. Its totient is φ = 5654004444.

The previous prime is 5654653013. The next prime is 5654653031. The reversal of 5654653021 is 1203564565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5654653021 - 2³ = 5654653013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5654653031) 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, 311031 + ... + 328708.

It is an arithmetic number, because the mean of its divisors is an integer number (1413825400).

Almost surely, 2^5654653021 is an apocalyptic number.

It is an amenable number.

5654653021 is a deficient number, since it is larger than the sum of its proper divisors (648579).

5654653021 is an equidigital number, since it uses as much as digits as its factorization.

5654653021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648578.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 5654653021 is about 75197.4269573102. The cubic root of 5654653021 is about 1781.5662917872.

The spelling of 5654653021 in words is "five billion, six hundred fifty-four million, six hundred fifty-three thousand, twenty-one".