25642253153 has 8 divisors (see below), whose sum is σ = 28729404480. Its totient is φ = 22681108080.

The previous prime is 25642253137. The next prime is 25642253171. The reversal of 25642253153 is 35135224652.

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 25642253153 - 2⁴ = 25642253137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25642253113) 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, 31501133 + ... + 31501946.

It is an arithmetic number, because the mean of its divisors is an integer number (3591175560).

Almost surely, 2^25642253153 is an apocalyptic number.

It is an amenable number.

25642253153 is a deficient number, since it is larger than the sum of its proper divisors (3087151327).

25642253153 is a wasteful number, since it uses less digits than its factorization.

25642253153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63003127.

The product of its digits is 216000, while the sum is 38.

The spelling of 25642253153 in words is "twenty-five billion, six hundred forty-two million, two hundred fifty-three thousand, one hundred fifty-three".