13520554261 has 16 divisors (see below), whose sum is σ = 14770454400. Its totient is φ = 12327336000.

The previous prime is 13520554247. The next prime is 13520554277. The reversal of 13520554261 is 16245502531.

It is a cyclic number.

It is not a de Polignac number, because 13520554261 - 2¹³ = 13520546069 is a prime.

It is a super-2 number, since 2×13520554261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520552261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131911 + ... + 210811.

It is an arithmetic number, because the mean of its divisors is an integer number (923153400).

Almost surely, 2^13520554261 is an apocalyptic number.

It is an amenable number.

13520554261 is a deficient number, since it is larger than the sum of its proper divisors (1249900139).

13520554261 is a wasteful number, since it uses less digits than its factorization.

13520554261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79260.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 13520554261 in words is "thirteen billion, five hundred twenty million, five hundred fifty-four thousand, two hundred sixty-one".