21053526939275 has 24 divisors (see below), whose sum is σ = 27752476220400. Its totient is φ = 15798373488000.

The previous prime is 21053526939241. The next prime is 21053526939323. The reversal of 21053526939275 is 57293962535012.

It is not a de Polignac number, because 21053526939275 - 2¹⁰ = 21053526938251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219373880 + ... + 219469829.

It is an arithmetic number, because the mean of its divisors is an integer number (1156353175850).

Almost surely, 2^{21053526939275} is an apocalyptic number.

21053526939275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21053526939275 is a deficient number, since it is larger than the sum of its proper divisors (6698949281125).

21053526939275 is a wasteful number, since it uses less digits than its factorization.

21053526939275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438843839 (or 438843834 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 59.

The spelling of 21053526939275 in words is "twenty-one trillion, fifty-three billion, five hundred twenty-six million, nine hundred thirty-nine thousand, two hundred seventy-five".