57258242 has 4 divisors (see below), whose sum is σ = 85887366. Its totient is φ = 28629120.

The previous prime is 57258233. The next prime is 57258259. The reversal of 57258242 is 24285275.

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

It can be written as a sum of positive squares in only one way, i.e., 55815841 + 1442401 = 7471^2 + 1201^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14314559 + ... + 14314562.

Almost surely, 2^57258242 is an apocalyptic number.

57258242 is a deficient number, since it is larger than the sum of its proper divisors (28629124).

57258242 is a wasteful number, since it uses less digits than its factorization.

57258242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28629123.

The product of its digits is 44800, while the sum is 35.

The square root of 57258242 is about 7566.9176023002. The cubic root of 57258242 is about 385.4304333055.

The spelling of 57258242 in words is "fifty-seven million, two hundred fifty-eight thousand, two hundred forty-two".