57051000 has 128 divisors (see below), whose sum is σ = 197870400. Its totient is φ = 15206400.

The previous prime is 57050989. The next prime is 57051013. The reversal of 57051000 is 15075.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25944 + ... + 28056.

Almost surely, 2^57051000 is an apocalyptic number.

57051000 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 57051000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98935200).

57051000 is an abundant number, since it is smaller than the sum of its proper divisors (140819400).

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

57051000 is a wasteful number, since it uses less digits than its factorization.

57051000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 57051000 is about 7553.2112376128. The cubic root of 57051000 is about 384.9648587704.

Adding to 57051000 its reverse (15075), we get a palindrome (57066075).

The spelling of 57051000 in words is "fifty-seven million, fifty-one thousand".