25275000505 has 8 divisors (see below), whose sum is σ = 30330905472. Its totient is φ = 20219397168.

The previous prime is 25275000503. The next prime is 25275000601. The reversal of 25275000505 is 50500057252.

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 25275000505 - 2¹ = 25275000503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25275000503) 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, 201174 + ... + 301696.

It is an arithmetic number, because the mean of its divisors is an integer number (3791363184).

Almost surely, 2^25275000505 is an apocalyptic number.

It is an amenable number.

25275000505 is a deficient number, since it is larger than the sum of its proper divisors (5055904967).

25275000505 is a wasteful number, since it uses less digits than its factorization.

25275000505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150815.

The product of its (nonzero) digits is 17500, while the sum is 31.

Adding to 25275000505 its reverse (50500057252), we get a palindrome (75775057757).

The spelling of 25275000505 in words is "twenty-five billion, two hundred seventy-five million, five hundred five", and thus it is an aban number.