57420037 has 2 divisors, whose sum is σ = 57420038. Its totient is φ = 57420036.

The previous prime is 57420031. The next prime is 57420053. The reversal of 57420037 is 73002475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31348801 + 26071236 = 5599^2 + 5106^2 .

It is a cyclic number.

It is not a de Polignac number, because 57420037 - 2⁷ = 57419909 is a prime.

It is a super-3 number, since 3×57420037³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57419987 and 57420014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57420031) 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, 28710018 + 28710019.

It is an arithmetic number, because the mean of its divisors is an integer number (28710019).

Almost surely, 2^57420037 is an apocalyptic number.

It is an amenable number.

57420037 is a deficient number, since it is larger than the sum of its proper divisors (1).

57420037 is an equidigital number, since it uses as much as digits as its factorization.

57420037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57420037 is about 7577.6010055954. The cubic root of 57420037 is about 385.7931296855.

The spelling of 57420037 in words is "fifty-seven million, four hundred twenty thousand, thirty-seven".