57840061 has 4 divisors (see below), whose sum is σ = 58195072. Its totient is φ = 57485052.

The previous prime is 57840059. The next prime is 57840071. The reversal of 57840061 is 16004875.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57840061 - 2¹ = 57840059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57840011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177261 + ... + 177586.

It is an arithmetic number, because the mean of its divisors is an integer number (14548768).

Almost surely, 2^57840061 is an apocalyptic number.

It is an amenable number.

57840061 is a deficient number, since it is larger than the sum of its proper divisors (355011).

57840061 is a wasteful number, since it uses less digits than its factorization.

57840061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355010.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 57840061 is about 7605.2653471131. The cubic root of 57840061 is about 386.7315295303.

The spelling of 57840061 in words is "fifty-seven million, eight hundred forty thousand, sixty-one".