13533420525 has 12 divisors (see below), whose sum is σ = 22375255392. Its totient is φ = 7217824240.

The previous prime is 13533420493. The next prime is 13533420541. The reversal of 13533420525 is 52502433531.

It is not a de Polignac number, because 13533420525 - 2⁵ = 13533420493 is a prime.

It is a super-2 number, since 2×13533420525² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90222729 + ... + 90222878.

It is an arithmetic number, because the mean of its divisors is an integer number (1864604616).

Almost surely, 2^13533420525 is an apocalyptic number.

13533420525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13533420525 is a deficient number, since it is larger than the sum of its proper divisors (8841834867).

13533420525 is a wasteful number, since it uses less digits than its factorization.

13533420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180445620 (or 180445615 counting only the distinct ones).

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

The spelling of 13533420525 in words is "thirteen billion, five hundred thirty-three million, four hundred twenty thousand, five hundred twenty-five".