57506455213 has 4 divisors (see below), whose sum is σ = 57512417308. Its totient is φ = 57500493120.

The previous prime is 57506455121. The next prime is 57506455217. The reversal of 57506455213 is 31255460575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20597129289 + 36909325924 = 143517^2 + 192118^2 .

It is a cyclic number.

It is not a de Polignac number, because 57506455213 - 2¹³ = 57506447021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57506455213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57506455217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966556 + ... + 2985877.

It is an arithmetic number, because the mean of its divisors is an integer number (14378104327).

Almost surely, 2^57506455213 is an apocalyptic number.

It is an amenable number.

57506455213 is a deficient number, since it is larger than the sum of its proper divisors (5962095).

57506455213 is an equidigital number, since it uses as much as digits as its factorization.

57506455213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962094.

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 57506455213 in words is "fifty-seven billion, five hundred six million, four hundred fifty-five thousand, two hundred thirteen".