25787330201 has 8 divisors (see below), whose sum is σ = 26067304008. Its totient is φ = 25507840000.

The previous prime is 25787330197. The next prime is 25787330203. The reversal of 25787330201 is 10203378752.

It can be written as a sum of positive squares in 4 ways, for example, as 5726856976 + 20060473225 = 75676^2 + 141635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(25787330201) divides (25787330201-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 25787330201 - 2² = 25787330197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25787330203) 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, 13160 + ... + 227481.

It is an arithmetic number, because the mean of its divisors is an integer number (3258413001).

Almost surely, 2^25787330201 is an apocalyptic number.

25787330201 is the 71816-th centered decagonal number.

It is an amenable number.

25787330201 is a deficient number, since it is larger than the sum of its proper divisors (279973807).

25787330201 is a wasteful number, since it uses less digits than its factorization.

25787330201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241803.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 25787330201 in words is "twenty-five billion, seven hundred eighty-seven million, three hundred thirty thousand, two hundred one".