57026004 has 72 divisors (see below), whose sum is σ = 155782368. Its totient is φ = 16188480.

The previous prime is 57025981. The next prime is 57026017. The reversal of 57026004 is 40062075.

It is a happy number.

57026004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 172119 + ... + 172449.

It is an arithmetic number, because the mean of its divisors is an integer number (2163644).

Almost surely, 2^57026004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57026004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77891184).

57026004 is an abundant number, since it is smaller than the sum of its proper divisors (98756364).

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

57026004 is a wasteful number, since it uses less digits than its factorization.

57026004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 57026004 is about 7551.5563958697. The cubic root of 57026004 is about 384.9086284544.

Adding to 57026004 its reverse (40062075), we get a palindrome (97088079).

The spelling of 57026004 in words is "fifty-seven million, twenty-six thousand, four".