21832500457 has 2 divisors, whose sum is σ = 21832500458. Its totient is φ = 21832500456.

The previous prime is 21832500401. The next prime is 21832500499. The reversal of 21832500457 is 75400523812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21814994601 + 17505856 = 147699^2 + 4184^2 .

It is a cyclic number.

It is not a de Polignac number, because 21832500457 - 2¹⁵ = 21832467689 is a prime.

It is not a weakly prime, because it can be changed into another prime (21832507457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10916250228 + 10916250229.

It is an arithmetic number, because the mean of its divisors is an integer number (10916250229).

Almost surely, 2^21832500457 is an apocalyptic number.

It is an amenable number.

21832500457 is a deficient number, since it is larger than the sum of its proper divisors (1).

21832500457 is an equidigital number, since it uses as much as digits as its factorization.

21832500457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 21832500457 in words is "twenty-one billion, eight hundred thirty-two million, five hundred thousand, four hundred fifty-seven".