57723534 has 72 divisors (see below), whose sum is σ = 145650960. Its totient is φ = 16452480.

The previous prime is 57723529. The next prime is 57723563. The reversal of 57723534 is 43532775.

57723534 is a `hidden beast` number, since 57 + 72 + 3 + 534 = 666.

57723534 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 35 ways as a sum of consecutive naturals, for example, 36247 + ... + 37805.

It is an arithmetic number, because the mean of its divisors is an integer number (2022930).

Almost surely, 2^57723534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57723534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72825480).

57723534 is an abundant number, since it is smaller than the sum of its proper divisors (87927426).

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

57723534 is a wasteful number, since it uses less digits than its factorization.

57723534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1592 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 57723534 is about 7597.6005422765. The cubic root of 57723534 is about 386.4716464370.

The spelling of 57723534 in words is "fifty-seven million, seven hundred twenty-three thousand, five hundred thirty-four".