21832500401 has 2 divisors, whose sum is σ = 21832500402. Its totient is φ = 21832500400.

The previous prime is 21832500367. The next prime is 21832500457. The reversal of 21832500401 is 10400523812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15875748001 + 5956752400 = 125999^2 + 77180^2 .

It is a cyclic number.

It is not a de Polignac number, because 21832500401 - 2⁶ = 21832500337 is a prime.

It is a super-3 number, since 3×21832500401³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21832500901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10916250200 + 10916250201.

It is an arithmetic number, because the mean of its divisors is an integer number (10916250201).

Almost surely, 2^21832500401 is an apocalyptic number.

It is an amenable number.

21832500401 is a deficient number, since it is larger than the sum of its proper divisors (1).

21832500401 is an equidigital number, since it uses as much as digits as its factorization.

21832500401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 21832500401 in words is "twenty-one billion, eight hundred thirty-two million, five hundred thousand, four hundred one".