13375255725 has 54 divisors (see below), whose sum is σ = 25941210750. Its totient is φ = 6584722560.

The previous prime is 13375255717. The next prime is 13375255727. The reversal of 13375255725 is 52755257331.

13375255725 is a `hidden beast` number, since 1 + 3 + 3 + 75 + 2 + 5 + 572 + 5 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 3646589769 + 9728665956 = 60387^2 + 98634^2 .

It is not a de Polignac number, because 13375255725 - 2³ = 13375255717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13375255727) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 137850 + ... + 213899.

Almost surely, 2^13375255725 is an apocalyptic number.

13375255725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13375255725 is a deficient number, since it is larger than the sum of its proper divisors (12565955025).

13375255725 is a wasteful number, since it uses less digits than its factorization.

13375255725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351791 (or 351770 counting only the distinct ones).

The product of its digits is 1102500, while the sum is 45.

The spelling of 13375255725 in words is "thirteen billion, three hundred seventy-five million, two hundred fifty-five thousand, seven hundred twenty-five".