21150022625513 has 8 divisors (see below), whose sum is σ = 21644150914848. Its totient is φ = 20655997395264.

The previous prime is 21150022625503. The next prime is 21150022625519. The reversal of 21150022625513 is 31552622005112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21150022625513 - 2⁴ = 21150022625497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21150022625519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25349456 + ... + 26170497.

It is an arithmetic number, because the mean of its divisors is an integer number (2705518864356).

Almost surely, 2^{21150022625513} is an apocalyptic number.

It is an amenable number.

21150022625513 is a deficient number, since it is larger than the sum of its proper divisors (494128289335).

21150022625513 is an equidigital number, since it uses as much as digits as its factorization.

21150022625513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51529543.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 21150022625513 in words is "twenty-one trillion, one hundred fifty billion, twenty-two million, six hundred twenty-five thousand, five hundred thirteen".