57255945 has 8 divisors (see below), whose sum is σ = 91609536. Its totient is φ = 30536496.

The previous prime is 57255943. The next prime is 57255971. The reversal of 57255945 is 54955275.

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

It is not a de Polignac number, because 57255945 - 2¹ = 57255943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57255897 and 57255906.

It is not an unprimeable number, because it can be changed into a prime (57255941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1908517 + ... + 1908546.

It is an arithmetic number, because the mean of its divisors is an integer number (11451192).

Almost surely, 2^57255945 is an apocalyptic number.

It is an amenable number.

57255945 is a deficient number, since it is larger than the sum of its proper divisors (34353591).

57255945 is a wasteful number, since it uses less digits than its factorization.

57255945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817071.

The product of its digits is 315000, while the sum is 42.

The square root of 57255945 is about 7566.7658216704. The cubic root of 57255945 is about 385.4252791972.

The spelling of 57255945 in words is "fifty-seven million, two hundred fifty-five thousand, nine hundred forty-five".