55506404775650 has 12 divisors (see below), whose sum is σ = 103241912882802. Its totient is φ = 22202561910240.

The previous prime is 55506404775629. The next prime is 55506404775683. The reversal of 55506404775650 is 5657740460555.

It can be written as a sum of positive squares in 3 ways, for example, as 43755063087121 + 11751341688529 = 6614761^2 + 3428023^2 .

It is a super-2 number, since 2×55506404775650² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55506404775650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555064047707 + ... + 555064047806.

Almost surely, 2^{55506404775650} is an apocalyptic number.

55506404775650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55506404775650 is a deficient number, since it is larger than the sum of its proper divisors (47735508107152).

55506404775650 is a wasteful number, since it uses less digits than its factorization.

55506404775650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110128095525 (or 1110128095520 counting only the distinct ones).

The product of its (nonzero) digits is 88200000, while the sum is 59.

The spelling of 55506404775650 in words is "fifty-five trillion, five hundred six billion, four hundred four million, seven hundred seventy-five thousand, six hundred fifty".