57091204 has 6 divisors (see below), whose sum is σ = 99909614. Its totient is φ = 28545600.

The previous prime is 57091187. The next prime is 57091207. The reversal of 57091204 is 40219075.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30030400 + 27060804 = 5480^2 + 5202^2 .

It is not an unprimeable number, because it can be changed into a prime (57091207) 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 as a sum of consecutive naturals, namely, 7136397 + ... + 7136404.

Almost surely, 2^57091204 is an apocalyptic number.

It is an amenable number.

57091204 is a deficient number, since it is larger than the sum of its proper divisors (42818410).

57091204 is a wasteful number, since it uses less digits than its factorization.

57091204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272805 (or 14272803 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 57091204 is about 7555.8721534976. The cubic root of 57091204 is about 385.0552661428.

The spelling of 57091204 in words is "fifty-seven million, ninety-one thousand, two hundred four".