57572069 has 4 divisors (see below), whose sum is σ = 57743244. Its totient is φ = 57400896.

The previous prime is 57572051. The next prime is 57572083. The reversal of 57572069 is 96027575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25502500 + 32069569 = 5050^2 + 5663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57572069 is a prime.

It is a super-2 number, since 2×57572069² = 6629086257881522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57578069) 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 3 ways as a sum of consecutive naturals, for example, 85082 + ... + 85755.

It is an arithmetic number, because the mean of its divisors is an integer number (14435811).

Almost surely, 2^57572069 is an apocalyptic number.

It is an amenable number.

57572069 is a deficient number, since it is larger than the sum of its proper divisors (171175).

57572069 is a wasteful number, since it uses less digits than its factorization.

57572069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171174.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 57572069 is about 7587.6260450816. The cubic root of 57572069 is about 386.1333199439.

The spelling of 57572069 in words is "fifty-seven million, five hundred seventy-two thousand, sixty-nine".