55521245197 has 8 divisors (see below), whose sum is σ = 60583265280. Its totient is φ = 50461664160.

The previous prime is 55521245173. The next prime is 55521245201. The reversal of 55521245197 is 79154212555.

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 55521245197 - 2¹¹ = 55521243149 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 (55521245107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561997 + ... + 653362.

It is an arithmetic number, because the mean of its divisors is an integer number (7572908160).

Almost surely, 2^55521245197 is an apocalyptic number.

It is an amenable number.

55521245197 is a deficient number, since it is larger than the sum of its proper divisors (5062020083).

55521245197 is a wasteful number, since it uses less digits than its factorization.

55521245197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219523.

The product of its digits is 630000, while the sum is 46.

The spelling of 55521245197 in words is "fifty-five billion, five hundred twenty-one million, two hundred forty-five thousand, one hundred ninety-seven".