21255541410414 has 32 divisors (see below), whose sum is σ = 42681583010304. Its totient is φ = 7056765272000.

The previous prime is 21255541410413. The next prime is 21255541410419. The reversal of 21255541410414 is 41401414555212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21255541410413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63798187 + ... + 64130489.

It is an arithmetic number, because the mean of its divisors is an integer number (1333799469072).

Almost surely, 2^{21255541410414} is an apocalyptic number.

21255541410414 is an abundant number, since it is smaller than the sum of its proper divisors (21426041599890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21255541410414 is a wasteful number, since it uses less digits than its factorization.

21255541410414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375032.

The product of its (nonzero) digits is 128000, while the sum is 39.

Adding to 21255541410414 its reverse (41401414555212), we get a palindrome (62656955965626).

The spelling of 21255541410414 in words is "twenty-one trillion, two hundred fifty-five billion, five hundred forty-one million, four hundred ten thousand, four hundred fourteen".