55780382601 has 24 divisors (see below), whose sum is σ = 83454887880. Its totient is φ = 35859430656.

The previous prime is 55780382599. The next prime is 55780382641. The reversal of 55780382601 is 10628308755.

55780382601 is a `hidden beast` number, since 5 + 5 + 7 + 8 + 0 + 38 + 2 + 601 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7149548025 + 48630834576 = 84555^2 + 220524^2 .

It is not a de Polignac number, because 55780382601 - 2¹ = 55780382599 is a prime.

It is a super-2 number, since 2×55780382601² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55780382641) 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 23 ways as a sum of consecutive naturals, for example, 73941 + ... + 342093.

It is an arithmetic number, because the mean of its divisors is an integer number (3477286995).

Almost surely, 2^55780382601 is an apocalyptic number.

It is an amenable number.

55780382601 is a deficient number, since it is larger than the sum of its proper divisors (27674505279).

55780382601 is a wasteful number, since it uses less digits than its factorization.

55780382601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268985 (or 268982 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 55780382601 in words is "fifty-five billion, seven hundred eighty million, three hundred eighty-two thousand, six hundred one".