55665601057 has 16 divisors (see below), whose sum is σ = 65352317184. Its totient is φ = 46847520000.

The previous prime is 55665601051. The next prime is 55665601073. The reversal of 55665601057 is 75010656655.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55665601057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55665600998 and 55665601016.

It is not an unprimeable number, because it can be changed into a prime (55665601051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428569 + ... + 2451382.

It is an arithmetic number, because the mean of its divisors is an integer number (4084519824).

Almost surely, 2^55665601057 is an apocalyptic number.

It is an amenable number.

55665601057 is a deficient number, since it is larger than the sum of its proper divisors (9686716127).

55665601057 is a wasteful number, since it uses less digits than its factorization.

55665601057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880040.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 55665601057 in words is "fifty-five billion, six hundred sixty-five million, six hundred one thousand, fifty-seven".