4775520621 has 8 divisors (see below), whose sum is σ = 6367979680. Its totient is φ = 3183370992.

The previous prime is 4775520577. The next prime is 4775520641. The reversal of 4775520621 is 1260255774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4775520621 - 2²² = 4771326317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4775520621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4775520641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38566 + ... + 105063.

It is an arithmetic number, because the mean of its divisors is an integer number (795997460).

Almost surely, 2^4775520621 is an apocalyptic number.

It is an amenable number.

4775520621 is a deficient number, since it is larger than the sum of its proper divisors (1592459059).

4775520621 is a wasteful number, since it uses less digits than its factorization.

4775520621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154715.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 4775520621 is about 69105.1417840959. The cubic root of 4775520621 is about 1683.9928436354.

The spelling of 4775520621 in words is "four billion, seven hundred seventy-five million, five hundred twenty thousand, six hundred twenty-one".