55146553 has 16 divisors (see below), whose sum is σ = 70056576. Its totient is φ = 42157440.

The previous prime is 55146547. The next prime is 55146577. The reversal of 55146553 is 35564155.

55146553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55146553 - 2⁹ = 55146041 is a prime.

It is a super-2 number, since 2×55146553² = 6082284615563618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55146523) 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 15 ways as a sum of consecutive naturals, for example, 2676 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (4378536).

Almost surely, 2^55146553 is an apocalyptic number.

55146553 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55146553 is a deficient number, since it is larger than the sum of its proper divisors (14910023).

55146553 is a wasteful number, since it uses less digits than its factorization.

55146553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13584.

The product of its digits is 45000, while the sum is 34.

The square root of 55146553 is about 7426.0725151321. The cubic root of 55146553 is about 380.6327247424.

It can be divided in two parts, 551 and 46553, that multiplied together give a triangular number (25650703 = T₇₁₆₂).

The spelling of 55146553 in words is "fifty-five million, one hundred forty-six thousand, five hundred fifty-three".