57533040 has 60 divisors (see below), whose sum is σ = 193217544. Its totient is φ = 15341952.

The previous prime is 57533033. The next prime is 57533057. The reversal of 57533040 is 4033575.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a junction number, because it is equal to n+sod(n) for n = 57532995 and 57533013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39234 + ... + 40673.

Almost surely, 2^57533040 is an apocalyptic number.

It is an amenable number.

57533040 is an abundant number, since it is smaller than the sum of its proper divisors (135684504).

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

57533040 is a wasteful number, since it uses less digits than its factorization.

57533040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79926 (or 79917 counting only the distinct ones).

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

The square root of 57533040 is about 7585.0537242659. The cubic root of 57533040 is about 386.0460449605.

The spelling of 57533040 in words is "fifty-seven million, five hundred thirty-three thousand, forty".