57653561 has 8 divisors (see below), whose sum is σ = 67007040. Its totient is φ = 48579408.

The previous prime is 57653551. The next prime is 57653569. The reversal of 57653561 is 16535675.

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

It is a cyclic number.

It is not a de Polignac number, because 57653561 - 2¹⁰ = 57652537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57653569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69386 + ... + 70211.

It is an arithmetic number, because the mean of its divisors is an integer number (8375880).

Almost surely, 2^57653561 is an apocalyptic number.

It is an amenable number.

57653561 is a deficient number, since it is larger than the sum of its proper divisors (9353479).

57653561 is a wasteful number, since it uses less digits than its factorization.

57653561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139663.

The product of its digits is 94500, while the sum is 38.

The square root of 57653561 is about 7592.9942051868. The cubic root of 57653561 is about 386.3154217969.

The spelling of 57653561 in words is "fifty-seven million, six hundred fifty-three thousand, five hundred sixty-one".