53775506 has 4 divisors (see below), whose sum is σ = 80663262. Its totient is φ = 26887752.

The previous prime is 53775461. The next prime is 53775509. The reversal of 53775506 is 60557735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53421481 + 354025 = 7309^2 + 595^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53775506.

It is not an unprimeable number, because it can be changed into a prime (53775509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13443875 + ... + 13443878.

Almost surely, 2^53775506 is an apocalyptic number.

53775506 is a deficient number, since it is larger than the sum of its proper divisors (26887756).

53775506 is a wasteful number, since it uses less digits than its factorization.

53775506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26887755.

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 53775506 is about 7333.1784377581. The cubic root of 53775506 is about 377.4518009307.

The spelling of 53775506 in words is "fifty-three million, seven hundred seventy-five thousand, five hundred six".