57404500 has 24 divisors (see below), whose sum is σ = 125372520. Its totient is φ = 22961600.

The previous prime is 57404489. The next prime is 57404509. The reversal of 57404500 is 540475.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 57093136 = 558^2 + 7556^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57404509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56905 + ... + 57904.

It is an arithmetic number, because the mean of its divisors is an integer number (5223855).

Almost surely, 2^57404500 is an apocalyptic number.

57404500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57404500 is an abundant number, since it is smaller than the sum of its proper divisors (67968020).

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

57404500 is a wasteful number, since it uses less digits than its factorization.

57404500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114828 (or 114816 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 57404500 is about 7576.5757436985. The cubic root of 57404500 is about 385.7583299368.

Adding to 57404500 its reverse (540475), we get a palindrome (57944975).

The spelling of 57404500 in words is "fifty-seven million, four hundred four thousand, five hundred".