13513055251 has 8 divisors (see below), whose sum is σ = 14333096880. Its totient is φ = 12695808768.

The previous prime is 13513055249. The next prime is 13513055287. The reversal of 13513055251 is 15255031531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13513055251 - 2¹ = 13513055249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13513055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688821 + ... + 708166.

It is an arithmetic number, because the mean of its divisors is an integer number (1791637110).

Almost surely, 2^13513055251 is an apocalyptic number.

13513055251 is a deficient number, since it is larger than the sum of its proper divisors (820041629).

13513055251 is a wasteful number, since it uses less digits than its factorization.

13513055251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397573.

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 13513055251 its reverse (15255031531), we get a palindrome (28768086782).

The spelling of 13513055251 in words is "thirteen billion, five hundred thirteen million, fifty-five thousand, two hundred fifty-one".