25550349197 has 8 divisors (see below), whose sum is σ = 26229184896. Its totient is φ = 24877147392.

The previous prime is 25550349179. The next prime is 25550349217. The reversal of 25550349197 is 79194305552.

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 25550349197 - 2¹⁴ = 25550332813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25550349107) 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, 1399283 + ... + 1417424.

It is an arithmetic number, because the mean of its divisors is an integer number (3278648112).

Almost surely, 2^25550349197 is an apocalyptic number.

It is an amenable number.

25550349197 is a deficient number, since it is larger than the sum of its proper divisors (678835699).

25550349197 is a wasteful number, since it uses less digits than its factorization.

25550349197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816947.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 25550349197 in words is "twenty-five billion, five hundred fifty million, three hundred forty-nine thousand, one hundred ninety-seven".