14551332250421 has 4 divisors (see below), whose sum is σ = 15407292971052. Its totient is φ = 13695371529792.

The previous prime is 14551332250391. The next prime is 14551332250423. The reversal of 14551332250421 is 12405223315541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5550552233521 + 9000780016900 = 2355961^2 + 3000130^2 .

It is a cyclic number.

It is not a de Polignac number, because 14551332250421 - 2²² = 14551328056117 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 (14551332250423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427980360290 + ... + 427980360323.

It is an arithmetic number, because the mean of its divisors is an integer number (3851823242763).

Almost surely, 2^{14551332250421} is an apocalyptic number.

It is an amenable number.

14551332250421 is a deficient number, since it is larger than the sum of its proper divisors (855960720631).

14551332250421 is an equidigital number, since it uses as much as digits as its factorization.

14551332250421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855960720630.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 14551332250421 its reverse (12405223315541), we get a palindrome (26956555565962).

The spelling of 14551332250421 in words is "fourteen trillion, five hundred fifty-one billion, three hundred thirty-two million, two hundred fifty thousand, four hundred twenty-one".