105504053 has 4 divisors (see below), whose sum is σ = 106949388. Its totient is φ = 104058720.

The previous prime is 105503969. The next prime is 105504073. The reversal of 105504053 is 350405501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350405501 = 163 ⋅2149727.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 57866449 = 6902^2 + 7607^2 .

It is a cyclic number.

It is not a de Polignac number, because 105504053 - 2¹⁶ = 105438517 is a prime.

It is a super-2 number, since 2×105504053² = 22262210398853618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105504073) 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, 722558 + ... + 722703.

It is an arithmetic number, because the mean of its divisors is an integer number (26737347).

Almost surely, 2^105504053 is an apocalyptic number.

It is an amenable number.

105504053 is a deficient number, since it is larger than the sum of its proper divisors (1445335).

105504053 is an equidigital number, since it uses as much as digits as its factorization.

105504053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445334.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 105504053 is about 10271.5165871452. The cubic root of 105504053 is about 472.5231036733.

Adding to 105504053 its reverse (350405501), we get a palindrome (455909554).

The spelling of 105504053 in words is "one hundred five million, five hundred four thousand, fifty-three".