54105553 has 2 divisors, whose sum is σ = 54105554. Its totient is φ = 54105552.

The previous prime is 54105539. The next prime is 54105587. The reversal of 54105553 is 35550145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36566209 + 17539344 = 6047^2 + 4188^2 .

It is a cyclic number.

It is not a de Polignac number, because 54105553 - 2¹³ = 54097361 is a prime.

It is not a weakly prime, because it can be changed into another prime (54105593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27052776 + 27052777.

It is an arithmetic number, because the mean of its divisors is an integer number (27052777).

Almost surely, 2^54105553 is an apocalyptic number.

It is an amenable number.

54105553 is a deficient number, since it is larger than the sum of its proper divisors (1).

54105553 is an equidigital number, since it uses as much as digits as its factorization.

54105553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 54105553 is about 7355.6476941191. The cubic root of 54105553 is about 378.2224295803. Note that the first 3 decimals are identical.

Adding to 54105553 its reverse (35550145), we get a palindrome (89655698).

The spelling of 54105553 in words is "fifty-four million, one hundred five thousand, five hundred fifty-three".