25425021201 has 8 divisors (see below), whose sum is σ = 35068994880. Its totient is φ = 16365530832.

The previous prime is 25425021199. The next prime is 25425021233. The reversal of 25425021201 is 10212052452.

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

It is not a de Polignac number, because 25425021201 - 2¹ = 25425021199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25425021701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146120725 + ... + 146120898.

It is an arithmetic number, because the mean of its divisors is an integer number (4383624360).

Almost surely, 2^25425021201 is an apocalyptic number.

It is an amenable number.

25425021201 is a deficient number, since it is larger than the sum of its proper divisors (9643973679).

25425021201 is a wasteful number, since it uses less digits than its factorization.

25425021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292241655.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 25425021201 its reverse (10212052452), we get a palindrome (35637073653).

The spelling of 25425021201 in words is "twenty-five billion, four hundred twenty-five million, twenty-one thousand, two hundred one".