57909941 has 2 divisors, whose sum is σ = 57909942. Its totient is φ = 57909940.

The previous prime is 57909937. The next prime is 57909947. The reversal of 57909941 is 14990975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49758916 + 8151025 = 7054^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 57909941 - 2² = 57909937 is a prime.

It is a super-2 number, since 2×57909941² = 6707122533246962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57909892 and 57909901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57909947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28954970 + 28954971.

It is an arithmetic number, because the mean of its divisors is an integer number (28954971).

Almost surely, 2^57909941 is an apocalyptic number.

It is an amenable number.

57909941 is a deficient number, since it is larger than the sum of its proper divisors (1).

57909941 is an equidigital number, since it uses as much as digits as its factorization.

57909941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 57909941 is about 7609.8581458527. The cubic root of 57909941 is about 386.8872112654.

The spelling of 57909941 in words is "fifty-seven million, nine hundred nine thousand, nine hundred forty-one".