57644061 has 8 divisors (see below), whose sum is σ = 77445984. Its totient is φ = 38135760.

The previous prime is 57644057. The next prime is 57644063. The reversal of 57644061 is 16044675.

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

It is not a de Polignac number, because 57644061 - 2² = 57644057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57644063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72946 + ... + 73731.

It is an arithmetic number, because the mean of its divisors is an integer number (9680748).

Almost surely, 2^57644061 is an apocalyptic number.

It is an amenable number.

57644061 is a deficient number, since it is larger than the sum of its proper divisors (19801923).

57644061 is a wasteful number, since it uses less digits than its factorization.

57644061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146811.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 57644061 is about 7592.3686027484. The cubic root of 57644061 is about 386.2942019564.

The spelling of 57644061 in words is "fifty-seven million, six hundred forty-four thousand, sixty-one".