13042725 has 24 divisors (see below), whose sum is σ = 22504512. Its totient is φ = 6652800.

The previous prime is 13042697. The next prime is 13042727. The reversal of 13042725 is 52724031.

It is not a de Polignac number, because 13042725 - 2⁵ = 13042693 is a prime.

It is a super-2 number, since 2×13042725² = 340225350851250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13042695 and 13042704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2056 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (937688).

Almost surely, 2^13042725 is an apocalyptic number.

13042725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13042725 is a deficient number, since it is larger than the sum of its proper divisors (9461787).

13042725 is a wasteful number, since it uses less digits than its factorization.

13042725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 13042725 is about 3611.4713068222. The cubic root of 13042725 is about 235.3907788207.

Adding to 13042725 its reverse (52724031), we get a palindrome (65766756).

The spelling of 13042725 in words is "thirteen million, forty-two thousand, seven hundred twenty-five".