21432525001 has 8 divisors (see below), whose sum is σ = 21644205440. Its totient is φ = 21220913952.

The previous prime is 21432524983. The next prime is 21432525031. The reversal of 21432525001 is 10052523412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21432525001 - 2¹⁹ = 21432000713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21432525031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785140 + ... + 811978.

It is an arithmetic number, because the mean of its divisors is an integer number (2705525680).

Almost surely, 2^21432525001 is an apocalyptic number.

It is an amenable number.

21432525001 is a deficient number, since it is larger than the sum of its proper divisors (211680439).

21432525001 is a wasteful number, since it uses less digits than its factorization.

21432525001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34695.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 21432525001 in words is "twenty-one billion, four hundred thirty-two million, five hundred twenty-five thousand, one".