55000577 has 4 divisors (see below), whose sum is σ = 55156740. Its totient is φ = 54844416.

The previous prime is 55000571. The next prime is 55000597. The reversal of 55000577 is 77500055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77500055 = 5 ⋅15500011.

It can be written as a sum of positive squares in 2 ways, for example, as 8814961 + 46185616 = 2969^2 + 6796^2 .

It is a cyclic number.

It is not a de Polignac number, because 55000577 - 2⁶ = 55000513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55000571) 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, 77552 + ... + 78257.

It is an arithmetic number, because the mean of its divisors is an integer number (13789185).

Almost surely, 2^55000577 is an apocalyptic number.

It is an amenable number.

55000577 is a deficient number, since it is larger than the sum of its proper divisors (156163).

55000577 is a wasteful number, since it uses less digits than its factorization.

55000577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156162.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 55000577 is about 7416.2373883257. The cubic root of 55000577 is about 380.2965759524.

The spelling of 55000577 in words is "fifty-five million, five hundred seventy-seven", and thus it is an aban number.