55553117 has 4 divisors (see below), whose sum is σ = 56382336. Its totient is φ = 54723900.

The previous prime is 55553087. The next prime is 55553123. The reversal of 55553117 is 71135555.

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: 71135555 = 5 ⋅14227111.

It is a cyclic number.

It is not a de Polignac number, because 55553117 - 2⁶ = 55553053 is a prime.

It is a super-2 number, since 2×55553117² = 6172297616831378, 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 (55553167) 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, 414509 + ... + 414642.

It is an arithmetic number, because the mean of its divisors is an integer number (14095584).

Almost surely, 2^55553117 is an apocalyptic number.

It is an amenable number.

55553117 is a deficient number, since it is larger than the sum of its proper divisors (829219).

55553117 is an equidigital number, since it uses as much as digits as its factorization.

55553117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829218.

The product of its digits is 13125, while the sum is 32.

The square root of 55553117 is about 7453.3963399245. The cubic root of 55553117 is about 381.5658312042.

The spelling of 55553117 in words is "fifty-five million, five hundred fifty-three thousand, one hundred seventeen".