57055000 has 40 divisors (see below), whose sum is σ = 133691580. Its totient is φ = 22820000.

The previous prime is 57054979. The next prime is 57055003. The reversal of 57055000 is 55075.

57055000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57055003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 706 + ... + 10705.

Almost surely, 2^57055000 is an apocalyptic number.

57055000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57055000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66845790).

57055000 is an abundant number, since it is smaller than the sum of its proper divisors (76636580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57055000 is a wasteful number, since it uses less digits than its factorization.

57055000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11437 (or 11418 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 57055000 is about 7553.4760210118. The cubic root of 57055000 is about 384.9738555361.

The spelling of 57055000 in words is "fifty-seven million, fifty-five thousand".