21350052044025 has 48 divisors (see below), whose sum is σ = 35359750545408. Its totient is φ = 11367032040000.

The previous prime is 21350052043963. The next prime is 21350052044033. The reversal of 21350052044025 is 52044025005312.

It is a happy number.

It is not a de Polignac number, because 21350052044025 - 2⁷ = 21350052043897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120922560 + ... + 121098990.

It is an arithmetic number, because the mean of its divisors is an integer number (736661469696).

Almost surely, 2^{21350052044025} is an apocalyptic number.

21350052044025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21350052044025 is a deficient number, since it is larger than the sum of its proper divisors (14009698501383).

21350052044025 is a wasteful number, since it uses less digits than its factorization.

21350052044025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179222 (or 179217 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 21350052044025 its reverse (52044025005312), we get a palindrome (73394077049337).

The spelling of 21350052044025 in words is "twenty-one trillion, three hundred fifty billion, fifty-two million, forty-four thousand, twenty-five".