21250614032 has 10 divisors (see below), whose sum is σ = 41173064718. Its totient is φ = 10625307008.

The previous prime is 21250614029. The next prime is 21250614053. The reversal of 21250614032 is 23041605212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15103426816 + 6147187216 = 122896^2 + 78404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21250613992 and 21250614010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664081673 + ... + 664081704.

Almost surely, 2^21250614032 is an apocalyptic number.

It is an amenable number.

21250614032 is a deficient number, since it is larger than the sum of its proper divisors (19922450686).

21250614032 is a wasteful number, since it uses less digits than its factorization.

21250614032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328163385 (or 1328163379 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 21250614032 in words is "twenty-one billion, two hundred fifty million, six hundred fourteen thousand, thirty-two".