47652542221 has 2 divisors, whose sum is σ = 47652542222. Its totient is φ = 47652542220.

The previous prime is 47652542183. The next prime is 47652542243. The reversal of 47652542221 is 12224525674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45507555625 + 2144986596 = 213325^2 + 46314^2 .

It is a cyclic number.

It is not a de Polignac number, because 47652542221 - 2¹⁵ = 47652509453 is a prime.

It is a super-2 number, since 2×47652542221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47652572221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23826271110 + 23826271111.

It is an arithmetic number, because the mean of its divisors is an integer number (23826271111).

Almost surely, 2^47652542221 is an apocalyptic number.

It is an amenable number.

47652542221 is a deficient number, since it is larger than the sum of its proper divisors (1).

47652542221 is an equidigital number, since it uses as much as digits as its factorization.

47652542221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 40.

The spelling of 47652542221 in words is "forty-seven billion, six hundred fifty-two million, five hundred forty-two thousand, two hundred twenty-one".