21533425413510 has 16 divisors (see below), whose sum is σ = 51680220992496. Its totient is φ = 5742246776928.

The previous prime is 21533425413509. The next prime is 21533425413527. The reversal of 21533425413510 is 1531452433512.

It is a congruent number.

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, 358890423529 + ... + 358890423588.

It is an arithmetic number, because the mean of its divisors is an integer number (3230013812031).

Almost surely, 2^{21533425413510} is an apocalyptic number.

21533425413510 is an abundant number, since it is smaller than the sum of its proper divisors (30146795578986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21533425413510 is a wasteful number, since it uses less digits than its factorization.

21533425413510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717780847127.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 21533425413510 in words is "twenty-one trillion, five hundred thirty-three billion, four hundred twenty-five million, four hundred thirteen thousand, five hundred ten".