55315772882564 has 12 divisors (see below), whose sum is σ = 102496873282524. Its totient is φ = 26030951944704.

The previous prime is 55315772882563. The next prime is 55315772882611. The reversal of 55315772882564 is 46528827751355.

It can be written as a sum of positive squares in 2 ways, for example, as 47856537936964 + 7459234945600 = 6917842^2 + 2731160^2 .

It is a Harshad number since it is a multiple of its sum of digits (68), and also a Moran number because the ratio is a prime number: 813467248273 = 55315772882564 / (5 + 5 + 3 + 1 + 5 + 7 + 7 + 2 + 8 + 8 + 2 + 5 + 6 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 55315772882494 and 55315772882503.

It is not an unprimeable number, because it can be changed into a prime (55315772882563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406733624069 + ... + 406733624204.

It is an arithmetic number, because the mean of its divisors is an integer number (8541406106877).

Almost surely, 2^{55315772882564} is an apocalyptic number.

It is an amenable number.

55315772882564 is a deficient number, since it is larger than the sum of its proper divisors (47181100399960).

55315772882564 is a wasteful number, since it uses less digits than its factorization.

55315772882564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813467248294 (or 813467248292 counting only the distinct ones).

The product of its digits is 564480000, while the sum is 68.

The spelling of 55315772882564 in words is "fifty-five trillion, three hundred fifteen billion, seven hundred seventy-two million, eight hundred eighty-two thousand, five hundred sixty-four".