21525034335 has 48 divisors (see below), whose sum is σ = 40212223200. Its totient is φ = 9803345664.

The previous prime is 21525034303. The next prime is 21525034337. The reversal of 21525034335 is 53343052512.

It is not a de Polignac number, because 21525034335 - 2⁵ = 21525034303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21525034296 and 21525034305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21525034337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143281 + ... + 252149.

It is an arithmetic number, because the mean of its divisors is an integer number (837754650).

Almost surely, 2^21525034335 is an apocalyptic number.

21525034335 is a deficient number, since it is larger than the sum of its proper divisors (18687188865).

21525034335 is a wasteful number, since it uses less digits than its factorization.

21525034335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109160 (or 109153 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 21525034335 its reverse (53343052512), we get a palindrome (74868086847).

The spelling of 21525034335 in words is "twenty-one billion, five hundred twenty-five million, thirty-four thousand, three hundred thirty-five".