57260987 has 8 divisors (see below), whose sum is σ = 65487072. Its totient is φ = 49046400.

The previous prime is 57260963. The next prime is 57260989. The reversal of 57260987 is 78906275.

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 57260987 - 2⁶ = 57260923 is a prime.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (57260989) 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, 16787 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (8185884).

Almost surely, 2^57260987 is an apocalyptic number.

57260987 is a deficient number, since it is larger than the sum of its proper divisors (8226085).

57260987 is a wasteful number, since it uses less digits than its factorization.

57260987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 57260987 is about 7567.0989817763. The cubic root of 57260987 is about 385.4365924749.

The spelling of 57260987 in words is "fifty-seven million, two hundred sixty thousand, nine hundred eighty-seven".