47922025921 has 27 divisors (see below), whose sum is σ = 61296122433. Its totient is φ = 37328703720.

The previous prime is 47922025909. The next prime is 47922025933. The reversal of 47922025921 is 12952022974.

The square root of 47922025921 is 218911.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (47922025909) and next prime (47922025933).

It is not a de Polignac number, because 47922025921 - 2¹¹ = 47922023873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47922025901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16854726 + ... + 16857568.

Almost surely, 2^47922025921 is an apocalyptic number.

47922025921 is the 218911-st square number.

47922025921 is the 109456-th centered octagonal number.

It is an amenable number.

47922025921 is a deficient number, since it is larger than the sum of its proper divisors (13374096512).

47922025921 is an frugal number, since it uses more digits than its factorization.

47922025921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 47922025921 in words is "forty-seven billion, nine hundred twenty-two million, twenty-five thousand, nine hundred twenty-one".