57282555 has 16 divisors (see below), whose sum is σ = 99984384. Its totient is φ = 27773280.

The previous prime is 57282553. The next prime is 57282583. The reversal of 57282555 is 55528275.

It is not a de Polignac number, because 57282555 - 2¹ = 57282553 is a prime.

It is a super-2 number, since 2×57282555² = 6562582214656050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57282553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173419 + ... + 173748.

It is an arithmetic number, because the mean of its divisors is an integer number (6249024).

Almost surely, 2^57282555 is an apocalyptic number.

57282555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57282555 is a deficient number, since it is larger than the sum of its proper divisors (42701829).

57282555 is a wasteful number, since it uses less digits than its factorization.

57282555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347186.

The product of its digits is 140000, while the sum is 39.

The square root of 57282555 is about 7568.5239644200. The cubic root of 57282555 is about 385.4849794212.

The spelling of 57282555 in words is "fifty-seven million, two hundred eighty-two thousand, five hundred fifty-five".