53561582 has 4 divisors (see below), whose sum is σ = 80342376. Its totient is φ = 26780790.

The previous prime is 53561567. The next prime is 53561587. The reversal of 53561582 is 28516535.

53561582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28516535 = 5 ⋅5703307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53561587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13390394 + ... + 13390397.

It is an arithmetic number, because the mean of its divisors is an integer number (20085594).

Almost surely, 2^53561582 is an apocalyptic number.

53561582 is a deficient number, since it is larger than the sum of its proper divisors (26780794).

53561582 is a wasteful number, since it uses less digits than its factorization.

53561582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26780793.

The product of its digits is 36000, while the sum is 35.

The square root of 53561582 is about 7318.5778673182. The cubic root of 53561582 is about 376.9506228910.

The spelling of 53561582 in words is "fifty-three million, five hundred sixty-one thousand, five hundred eighty-two".