55050553 has 4 divisors (see below), whose sum is σ = 55124608. Its totient is φ = 54976500.

The previous prime is 55050547. The next prime is 55050557. The reversal of 55050553 is 35505055.

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.

It is a cyclic number.

It is not a de Polignac number, because 55050553 - 2⁵ = 55050521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55050557) 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, 35901 + ... + 37402.

It is an arithmetic number, because the mean of its divisors is an integer number (13781152).

Almost surely, 2^55050553 is an apocalyptic number.

It is an amenable number.

55050553 is a deficient number, since it is larger than the sum of its proper divisors (74055).

55050553 is an equidigital number, since it uses as much as digits as its factorization.

55050553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74054.

The product of its (nonzero) digits is 9375, while the sum is 28.

The square root of 55050553 is about 7419.6059868432. The cubic root of 55050553 is about 380.4117259450.

The spelling of 55050553 in words is "fifty-five million, fifty thousand, five hundred fifty-three".