53050553 has 4 divisors (see below), whose sum is σ = 53575908. Its totient is φ = 52525200.

The previous prime is 53050549. The next prime is 53050573. The reversal of 53050553 is 35505035.

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 51222649 + 1827904 = 7157^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 53050553 - 2² = 53050549 is a prime.

It is a super-2 number, since 2×53050553² = 5628722347211618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53050513) 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, 262526 + ... + 262727.

It is an arithmetic number, because the mean of its divisors is an integer number (13393977).

Almost surely, 2^53050553 is an apocalyptic number.

It is an amenable number.

53050553 is a deficient number, since it is larger than the sum of its proper divisors (525355).

53050553 is a wasteful number, since it uses less digits than its factorization.

53050553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525354.

The product of its (nonzero) digits is 5625, while the sum is 26.

The square root of 53050553 is about 7283.5810560465. The cubic root of 53050553 is about 375.7479660957.

Adding to 53050553 its reverse (35505035), we get a palindrome (88555588).

The spelling of 53050553 in words is "fifty-three million, fifty thousand, five hundred fifty-three".