55866487270 has 16 divisors (see below), whose sum is σ = 109701466128. Its totient is φ = 20315086240.

The previous prime is 55866487267. The next prime is 55866487273. The reversal of 55866487270 is 7278466855.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55866487267) and next prime (55866487273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55866487273) 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, 253938469 + ... + 253938688.

It is an arithmetic number, because the mean of its divisors is an integer number (6856341633).

Almost surely, 2^55866487270 is an apocalyptic number.

55866487270 is a deficient number, since it is larger than the sum of its proper divisors (53834978858).

55866487270 is a wasteful number, since it uses less digits than its factorization.

55866487270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507877175.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 55866487270 in words is "fifty-five billion, eight hundred sixty-six million, four hundred eighty-seven thousand, two hundred seventy".