57440533 has 8 divisors (see below), whose sum is σ = 58810752. Its totient is φ = 56076576.

The previous prime is 57440527. The next prime is 57440557. The reversal of 57440533 is 33504475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57440533 - 2²⁵ = 23886101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57440495 and 57440504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57440573) 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, 20641 + ... + 23257.

It is an arithmetic number, because the mean of its divisors is an integer number (7351344).

Almost surely, 2^57440533 is an apocalyptic number.

It is an amenable number.

57440533 is a deficient number, since it is larger than the sum of its proper divisors (1370219).

57440533 is a wasteful number, since it uses less digits than its factorization.

57440533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 57440533 is about 7578.9532918471. The cubic root of 57440533 is about 385.8390269934.

The spelling of 57440533 in words is "fifty-seven million, four hundred forty thousand, five hundred thirty-three".