13256051 has 4 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 13206504.

The previous prime is 13256029. The next prime is 13256057. The reversal of 13256051 is 15065231.

13256051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15065231 = 61 ⋅246971.

It is a cyclic number.

It is not a de Polignac number, because 13256051 - 2¹⁸ = 12993907 is a prime.

It is a super-3 number, since 3×13256051³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13256057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24371 + ... + 24908.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^13256051 is an apocalyptic number.

13256051 is a deficient number, since it is larger than the sum of its proper divisors (49549).

13256051 is an equidigital number, since it uses as much as digits as its factorization.

13256051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49548.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13256051 is about 3640.8860185400. The cubic root of 13256051 is about 236.6671905915.

The spelling of 13256051 in words is "thirteen million, two hundred fifty-six thousand, fifty-one".