57057019 has 16 divisors (see below), whose sum is σ = 62894080. Its totient is φ = 51554880.

The previous prime is 57056983. The next prime is 57057041. The reversal of 57057019 is 91075075.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57057019 - 2⁹ = 57056507 is a prime.

It is a super-2 number, since 2×57057019² = 6511006834332722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57057079) 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, 42334 + ... + 43660.

It is an arithmetic number, because the mean of its divisors is an integer number (3930880).

Almost surely, 2^57057019 is an apocalyptic number.

57057019 is a deficient number, since it is larger than the sum of its proper divisors (5837061).

57057019 is a wasteful number, since it uses less digits than its factorization.

57057019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 11025, while the sum is 34.

The square root of 57057019 is about 7553.6096669076. The cubic root of 57057019 is about 384.9783964940.

The spelling of 57057019 in words is "fifty-seven million, fifty-seven thousand, nineteen".