55680505251 has 8 divisors (see below), whose sum is σ = 84846484224. Its totient is φ = 31817431560.

The previous prime is 55680505201. The next prime is 55680505289. The reversal of 55680505251 is 15250508655.

It is a happy number.

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

It is not a de Polignac number, because 55680505251 - 2¹⁵ = 55680472483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55680505201) 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, 1325726295 + ... + 1325726336.

It is an arithmetic number, because the mean of its divisors is an integer number (10605810528).

Almost surely, 2^55680505251 is an apocalyptic number.

55680505251 is a deficient number, since it is larger than the sum of its proper divisors (29165978973).

55680505251 is a wasteful number, since it uses less digits than its factorization.

55680505251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651452641.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 55680505251 in words is "fifty-five billion, six hundred eighty million, five hundred five thousand, two hundred fifty-one".