57533004 has 120 divisors (see below), whose sum is σ = 158802336. Its totient is φ = 18144000.

The previous prime is 57532997. The next prime is 57533009. The reversal of 57533004 is 40033575.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (57533009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 810289 + ... + 810359.

Almost surely, 2^57533004 is an apocalyptic number.

57533004 is a gapful number since it is divisible by the number (54) 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 57533004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79401168).

57533004 is an abundant number, since it is smaller than the sum of its proper divisors (101269332).

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

57533004 is a wasteful number, since it uses less digits than its factorization.

57533004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57533004 is about 7585.0513511775. The cubic root of 57533004 is about 386.0459644406.

Adding to 57533004 its reverse (40033575), we get a palindrome (97566579).

The spelling of 57533004 in words is "fifty-seven million, five hundred thirty-three thousand, four".