57369389 has 16 divisors (see below), whose sum is σ = 72272256. Its totient is φ = 44236800.

The previous prime is 57369359. The next prime is 57369409. The reversal of 57369389 is 98396375.

57369389 = T₁₁₈₂ + T₁₁₈₃ + ... + T₁₂₅₈.

57369389 = 4372² + 4373² + 4374².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57369389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57369359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3629 + ... + 11309.

It is an arithmetic number, because the mean of its divisors is an integer number (4517016).

Almost surely, 2^57369389 is an apocalyptic number.

It is an amenable number.

57369389 is a deficient number, since it is larger than the sum of its proper divisors (14902867).

57369389 is a wasteful number, since it uses less digits than its factorization.

57369389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796.

The product of its digits is 1224720, while the sum is 50.

The square root of 57369389 is about 7574.2583135248. The cubic root of 57369389 is about 385.6796652381.

The spelling of 57369389 in words is "fifty-seven million, three hundred sixty-nine thousand, three hundred eighty-nine".