55272299566 has 16 divisors (see below), whose sum is σ = 90496258560. Its totient is φ = 25109695480.

The previous prime is 55272299561. The next prime is 55272299567. The reversal of 55272299566 is 66599227255.

It is a self number, because there is not a number n which added to its sum of digits gives 55272299566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55272299561) 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, 663646 + ... + 742273.

It is an arithmetic number, because the mean of its divisors is an integer number (5656016160).

Almost surely, 2^55272299566 is an apocalyptic number.

55272299566 is a deficient number, since it is larger than the sum of its proper divisors (35223958994).

55272299566 is a wasteful number, since it uses less digits than its factorization.

55272299566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407719.

The product of its digits is 20412000, while the sum is 58.

The spelling of 55272299566 in words is "fifty-five billion, two hundred seventy-two million, two hundred ninety-nine thousand, five hundred sixty-six".