25250000305 has 8 divisors (see below), whose sum is σ = 30304189800. Its totient is φ = 20197207296.

The previous prime is 25250000299. The next prime is 25250000327. The reversal of 25250000305 is 50300005252.

It can be written as a sum of positive squares in 4 ways, for example, as 30019441 + 25219980864 = 5479^2 + 158808^2 .

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 25250000305 - 2¹⁵ = 25249967537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308920 + ... + 382009.

It is an arithmetic number, because the mean of its divisors is an integer number (3788023725).

Almost surely, 2^25250000305 is an apocalyptic number.

It is an amenable number.

25250000305 is a deficient number, since it is larger than the sum of its proper divisors (5054189495).

25250000305 is an equidigital number, since it uses as much as digits as its factorization.

25250000305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698243.

The product of its (nonzero) digits is 1500, while the sum is 22.

Adding to 25250000305 its reverse (50300005252), we get a palindrome (75550005557).

The spelling of 25250000305 in words is "twenty-five billion, two hundred fifty million, three hundred five", and thus it is an aban number.