55417877 has 4 divisors (see below), whose sum is σ = 56177100. Its totient is φ = 54658656.

The previous prime is 55417867. The next prime is 55417891. The reversal of 55417877 is 77871455.

55417877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13608721 + 41809156 = 3689^2 + 6466^2 .

It is a cyclic number.

It is not a de Polignac number, because 55417877 - 2¹² = 55413781 is a prime.

It is a super-2 number, since 2×55417877² = 6142282182374258, 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 (55417837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379502 + ... + 379647.

It is an arithmetic number, because the mean of its divisors is an integer number (14044275).

Almost surely, 2^55417877 is an apocalyptic number.

It is an amenable number.

55417877 is a deficient number, since it is larger than the sum of its proper divisors (759223).

55417877 is an equidigital number, since it uses as much as digits as its factorization.

55417877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759222.

The product of its digits is 274400, while the sum is 44.

The square root of 55417877 is about 7444.3184375737. The cubic root of 55417877 is about 381.2559482365.

The spelling of 55417877 in words is "fifty-five million, four hundred seventeen thousand, eight hundred seventy-seven".