55700786427 has 16 divisors (see below), whose sum is σ = 87251582208. Its totient is φ = 31161278880.

The previous prime is 55700786419. The next prime is 55700786459. The reversal of 55700786427 is 72468700755.

It is not a de Polignac number, because 55700786427 - 2³ = 55700786419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55700786427.

It is not an unprimeable number, because it can be changed into a prime (55700786497) 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 15 ways as a sum of consecutive naturals, for example, 64918903 + ... + 64919760.

It is an arithmetic number, because the mean of its divisors is an integer number (5453223888).

Almost surely, 2^55700786427 is an apocalyptic number.

55700786427 is a deficient number, since it is larger than the sum of its proper divisors (31550795781).

55700786427 is a wasteful number, since it uses less digits than its factorization.

55700786427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129838690.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 55700786427 in words is "fifty-five billion, seven hundred million, seven hundred eighty-six thousand, four hundred twenty-seven".