57260289 has 8 divisors (see below), whose sum is σ = 77267232. Its totient is φ = 37713440.

The previous prime is 57260279. The next prime is 57260303. The reversal of 57260289 is 98206275.

It is a happy number.

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 57260289 - 2⁸ = 57260033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57260209) 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, 114732 + ... + 115229.

It is an arithmetic number, because the mean of its divisors is an integer number (9658404).

Almost surely, 2^57260289 is an apocalyptic number.

It is an amenable number.

57260289 is a deficient number, since it is larger than the sum of its proper divisors (20006943).

57260289 is a wasteful number, since it uses less digits than its factorization.

57260289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230047.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 57260289 is about 7567.0528609228. The cubic root of 57260289 is about 385.4350263368.

The spelling of 57260289 in words is "fifty-seven million, two hundred sixty thousand, two hundred eighty-nine".