13135155425 has 12 divisors (see below), whose sum is σ = 18614391936. Its totient is φ = 9006963600.

The previous prime is 13135155401. The next prime is 13135155457. The reversal of 13135155425 is 52455153131.

It is not a de Polignac number, because 13135155425 - 2⁶ = 13135155361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 37528841 + ... + 37529190.

It is an arithmetic number, because the mean of its divisors is an integer number (1551199328).

Almost surely, 2^13135155425 is an apocalyptic number.

It is an amenable number.

13135155425 is a deficient number, since it is larger than the sum of its proper divisors (5479236511).

13135155425 is an equidigital number, since it uses as much as digits as its factorization.

13135155425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75058048 (or 75058043 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The spelling of 13135155425 in words is "thirteen billion, one hundred thirty-five million, one hundred fifty-five thousand, four hundred twenty-five".