55966877 has 4 divisors (see below), whose sum is σ = 56302176. Its totient is φ = 55631580.

The previous prime is 55966871. The next prime is 55966901. The reversal of 55966877 is 77866955.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77866955 = 5 ⋅15573391.

It is a cyclic number.

It is not a de Polignac number, because 55966877 - 2⁴ = 55966861 is a prime.

It is a super-2 number, since 2×55966877² = 6264582642266258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55966871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167399 + ... + 167732.

It is an arithmetic number, because the mean of its divisors is an integer number (14075544).

Almost surely, 2^55966877 is an apocalyptic number.

It is an amenable number.

55966877 is a deficient number, since it is larger than the sum of its proper divisors (335299).

55966877 is a wasteful number, since it uses less digits than its factorization.

55966877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335298.

The product of its digits is 3175200, while the sum is 53.

The square root of 55966877 is about 7481.1013226663. The cubic root of 55966877 is about 382.5107907019.

The spelling of 55966877 in words is "fifty-five million, nine hundred sixty-six thousand, eight hundred seventy-seven".