52561642 has 8 divisors (see below), whose sum is σ = 90105696. Its totient is φ = 22526412.

The previous prime is 52561627. The next prime is 52561643. The reversal of 52561642 is 24616525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (52561643) 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 in 3 ways as a sum of consecutive naturals, for example, 1877188 + ... + 1877215.

It is an arithmetic number, because the mean of its divisors is an integer number (11263212).

Almost surely, 2^52561642 is an apocalyptic number.

52561642 is a deficient number, since it is larger than the sum of its proper divisors (37544054).

52561642 is a wasteful number, since it uses less digits than its factorization.

52561642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3754412.

The product of its digits is 14400, while the sum is 31.

The square root of 52561642 is about 7249.9408273447. The cubic root of 52561642 is about 374.5901109540.

The spelling of 52561642 in words is "fifty-two million, five hundred sixty-one thousand, six hundred forty-two".