57229489 has 2 divisors, whose sum is σ = 57229490. Its totient is φ = 57229488.

The previous prime is 57229427. The next prime is 57229507. The reversal of 57229489 is 98492275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31270464 + 25959025 = 5592^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 57229489 - 2¹¹ = 57227441 is a prime.

It is a super-2 number, since 2×57229489² = 6550428822402242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57229889) 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, 28614744 + 28614745.

It is an arithmetic number, because the mean of its divisors is an integer number (28614745).

Almost surely, 2^57229489 is an apocalyptic number.

It is an amenable number.

57229489 is a deficient number, since it is larger than the sum of its proper divisors (1).

57229489 is an equidigital number, since it uses as much as digits as its factorization.

57229489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 57229489 is about 7565.0174487571. The cubic root of 57229489 is about 385.3659061363.

The spelling of 57229489 in words is "fifty-seven million, two hundred twenty-nine thousand, four hundred eighty-nine".