21514445052554 has 16 divisors (see below), whose sum is σ = 33411539855616. Its totient is φ = 10379324491200.

The previous prime is 21514445052473. The next prime is 21514445052577. The reversal of 21514445052554 is 45525054441512.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21514445052499 and 21514445052508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514826552 + ... + 514868339.

It is an arithmetic number, because the mean of its divisors is an integer number (2088221240976).

Almost surely, 2^{21514445052554} is an apocalyptic number.

21514445052554 is a deficient number, since it is larger than the sum of its proper divisors (11897094803062).

21514445052554 is a wasteful number, since it uses less digits than its factorization.

21514445052554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029695261.

The product of its (nonzero) digits is 3200000, while the sum is 47.

The spelling of 21514445052554 in words is "twenty-one trillion, five hundred fourteen billion, four hundred forty-five million, fifty-two thousand, five hundred fifty-four".