57013553 has 2 divisors, whose sum is σ = 57013554. Its totient is φ = 57013552.

The previous prime is 57013513. The next prime is 57013603. The reversal of 57013553 is 35531075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34951744 + 22061809 = 5912^2 + 4697^2 .

It is a cyclic number.

It is not a de Polignac number, because 57013553 - 2²⁰ = 55964977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57013513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28506776 + 28506777.

It is an arithmetic number, because the mean of its divisors is an integer number (28506777).

Almost surely, 2^57013553 is an apocalyptic number.

It is an amenable number.

57013553 is a deficient number, since it is larger than the sum of its proper divisors (1).

57013553 is an equidigital number, since it uses as much as digits as its factorization.

57013553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 57013553 is about 7550.7319512747. The cubic root of 57013553 is about 384.8806128952.

The spelling of 57013553 in words is "fifty-seven million, thirteen thousand, five hundred fifty-three".