25055021201 has 8 divisors (see below), whose sum is σ = 28635410880. Its totient is φ = 21474906768.

The previous prime is 25055021191. The next prime is 25055021207. The reversal of 25055021201 is 10212055052.

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

It is not a de Polignac number, because 25055021201 - 2²² = 25050826897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25055021207) 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, 192335 + ... + 295131.

It is an arithmetic number, because the mean of its divisors is an integer number (3579426360).

Almost surely, 2^25055021201 is an apocalyptic number.

It is an amenable number.

25055021201 is a deficient number, since it is larger than the sum of its proper divisors (3580389679).

25055021201 is a wasteful number, since it uses less digits than its factorization.

25055021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137623.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 25055021201 its reverse (10212055052), we get a palindrome (35267076253).

The spelling of 25055021201 in words is "twenty-five billion, fifty-five million, twenty-one thousand, two hundred one".