55551056601 has 4 divisors (see below), whose sum is σ = 74068075472. Its totient is φ = 37034037732.

The previous prime is 55551056581. The next prime is 55551056629. The reversal of 55551056601 is 10665015555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55551056601 - 2¹⁰ = 55551055577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55551056601.

It is not an unprimeable number, because it can be changed into a prime (55551056651) 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, 9258509431 + ... + 9258509436.

It is an arithmetic number, because the mean of its divisors is an integer number (18517018868).

Almost surely, 2^55551056601 is an apocalyptic number.

It is an amenable number.

55551056601 is a deficient number, since it is larger than the sum of its proper divisors (18517018871).

55551056601 is a wasteful number, since it uses less digits than its factorization.

55551056601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517018870.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55551056601 in words is "fifty-five billion, five hundred fifty-one million, fifty-six thousand, six hundred one".