25142535413 has 4 divisors (see below), whose sum is σ = 25149210060. Its totient is φ = 25135860768.

The previous prime is 25142535409. The next prime is 25142535421. The reversal of 25142535413 is 31453524152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10824737764 + 14317797649 = 104042^2 + 119657^2 .

It is a cyclic number.

It is not a de Polignac number, because 25142535413 - 2² = 25142535409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142535463) 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, 3331670 + ... + 3339207.

It is an arithmetic number, because the mean of its divisors is an integer number (6287302515).

Almost surely, 2^25142535413 is an apocalyptic number.

It is an amenable number.

25142535413 is a deficient number, since it is larger than the sum of its proper divisors (6674647).

25142535413 is an equidigital number, since it uses as much as digits as its factorization.

25142535413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674646.

The product of its digits is 72000, while the sum is 35.

The spelling of 25142535413 in words is "twenty-five billion, one hundred forty-two million, five hundred thirty-five thousand, four hundred thirteen".