57981545 has 8 divisors (see below), whose sum is σ = 70005696. Its totient is φ = 46100016.

The previous prime is 57981541. The next prime is 57981557. The reversal of 57981545 is 54518975.

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 57981545 - 2² = 57981541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57981496 and 57981505.

It is not an unprimeable number, because it can be changed into a prime (57981541) 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, 34757 + ... + 36386.

It is an arithmetic number, because the mean of its divisors is an integer number (8750712).

Almost surely, 2^57981545 is an apocalyptic number.

It is an amenable number.

57981545 is a deficient number, since it is larger than the sum of its proper divisors (12024151).

57981545 is a wasteful number, since it uses less digits than its factorization.

57981545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71311.

The product of its digits is 252000, while the sum is 44.

The square root of 57981545 is about 7614.5613793573. The cubic root of 57981545 is about 387.0466039441.

The spelling of 57981545 in words is "fifty-seven million, nine hundred eighty-one thousand, five hundred forty-five".