57578429 has 2 divisors, whose sum is σ = 57578430. Its totient is φ = 57578428.

The previous prime is 57578363. The next prime is 57578447. The reversal of 57578429 is 92487575.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57304900 + 273529 = 7570^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 57578429 - 2²⁴ = 40801213 is a prime.

It is a super-2 number, since 2×57578429² = 6630550972216082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57578489) 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 as a sum of consecutive naturals, namely, 28789214 + 28789215.

It is an arithmetic number, because the mean of its divisors is an integer number (28789215).

Almost surely, 2^57578429 is an apocalyptic number.

It is an amenable number.

57578429 is a deficient number, since it is larger than the sum of its proper divisors (1).

57578429 is an equidigital number, since it uses as much as digits as its factorization.

57578429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 57578429 is about 7588.0451369243. The cubic root of 57578429 is about 386.1475381666.

The spelling of 57578429 in words is "fifty-seven million, five hundred seventy-eight thousand, four hundred twenty-nine".