57057385 has 16 divisors (see below), whose sum is σ = 85364352. Its totient is φ = 35568000.

The previous prime is 57057383. The next prime is 57057419. The reversal of 57057385 is 58375075.

It is not a de Polignac number, because 57057385 - 2¹ = 57057383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57057383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73716 + ... + 74485.

It is an arithmetic number, because the mean of its divisors is an integer number (5335272).

Almost surely, 2^57057385 is an apocalyptic number.

57057385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57057385 is a deficient number, since it is larger than the sum of its proper divisors (28306967).

57057385 is a wasteful number, since it uses less digits than its factorization.

57057385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148224.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 57057385 is about 7553.6338936965. The cubic root of 57057385 is about 384.9792196576.

The spelling of 57057385 in words is "fifty-seven million, fifty-seven thousand, three hundred eighty-five".