57543261 has 8 divisors (see below), whose sum is σ = 76767264. Its totient is φ = 38340720.

The previous prime is 57543257. The next prime is 57543281. The reversal of 57543261 is 16234575.

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

It is not a de Polignac number, because 57543261 - 2² = 57543257 is a prime.

It is a super-2 number, since 2×57543261² = 6622453773028242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57543281) 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, 2571 + ... + 11031.

It is an arithmetic number, because the mean of its divisors is an integer number (9595908).

Almost surely, 2^57543261 is an apocalyptic number.

It is an amenable number.

57543261 is a deficient number, since it is larger than the sum of its proper divisors (19224003).

57543261 is a wasteful number, since it uses less digits than its factorization.

57543261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10731.

The product of its digits is 25200, while the sum is 33.

The square root of 57543261 is about 7585.7274535802. The cubic root of 57543261 is about 386.0689045381.

The spelling of 57543261 in words is "fifty-seven million, five hundred forty-three thousand, two hundred sixty-one".