47052521 has 2 divisors, whose sum is σ = 47052522. Its totient is φ = 47052520.

The previous prime is 47052517. The next prime is 47052539. The reversal of 47052521 is 12525074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45414121 + 1638400 = 6739^2 + 1280^2 .

It is a cyclic number.

It is not a de Polignac number, because 47052521 - 2² = 47052517 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (47052571) 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 as a sum of consecutive naturals, namely, 23526260 + 23526261.

It is an arithmetic number, because the mean of its divisors is an integer number (23526261).

Almost surely, 2^47052521 is an apocalyptic number.

It is an amenable number.

47052521 is a deficient number, since it is larger than the sum of its proper divisors (1).

47052521 is an equidigital number, since it uses as much as digits as its factorization.

47052521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 47052521 is about 6859.4840184959. The cubic root of 47052521 is about 361.0169829054.

Adding to 47052521 its reverse (12525074), we get a palindrome (59577595).

The spelling of 47052521 in words is "forty-seven million, fifty-two thousand, five hundred twenty-one".