57020071 has 8 divisors (see below), whose sum is σ = 59808960. Its totient is φ = 54296928.

The previous prime is 57020039. The next prime is 57020099. The reversal of 57020071 is 17002075.

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 57020071 - 2⁵ = 57020039 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 (57020671) 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, 14656 + ... + 18133.

It is an arithmetic number, because the mean of its divisors is an integer number (7476120).

Almost surely, 2^57020071 is an apocalyptic number.

57020071 is a deficient number, since it is larger than the sum of its proper divisors (2788889).

57020071 is a wasteful number, since it uses less digits than its factorization.

57020071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32873.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 57020071 is about 7551.1635527248. The cubic root of 57020071 is about 384.8952793275.

The spelling of 57020071 in words is "fifty-seven million, twenty thousand, seventy-one".