21450155254301 has 8 divisors (see below), whose sum is σ = 21486869335800. Its totient is φ = 21413442998272.

The previous prime is 21450155254271. The next prime is 21450155254309. The reversal of 21450155254301 is 10345255105412.

It can be written as a sum of positive squares in 4 ways, for example, as 3896778648676 + 17553376605625 = 1974026^2 + 4189675^2 .

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 21450155254301 - 2⁶ = 21450155254237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21450155254309) 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 in 7 ways as a sum of consecutive naturals, for example, 24203261 + ... + 25073853.

It is an arithmetic number, because the mean of its divisors is an integer number (2685858666975).

Almost surely, 2^{21450155254301} is an apocalyptic number.

It is an amenable number.

21450155254301 is a deficient number, since it is larger than the sum of its proper divisors (36714081499).

21450155254301 is an equidigital number, since it uses as much as digits as its factorization.

21450155254301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912735.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 21450155254301 in words is "twenty-one trillion, four hundred fifty billion, one hundred fifty-five million, two hundred fifty-four thousand, three hundred one".