53870057 has 2 divisors, whose sum is σ = 53870058. Its totient is φ = 53870056.

The previous prime is 53870053. The next prime is 53870083. The reversal of 53870057 is 75007835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30647296 + 23222761 = 5536^2 + 4819^2 .

It is a cyclic number.

It is not a de Polignac number, because 53870057 - 2² = 53870053 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53869999 and 53870026.

It is not a weakly prime, because it can be changed into another prime (53870053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26935028 + 26935029.

It is an arithmetic number, because the mean of its divisors is an integer number (26935029).

Almost surely, 2^53870057 is an apocalyptic number.

It is an amenable number.

53870057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53870057 is an equidigital number, since it uses as much as digits as its factorization.

53870057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 53870057 is about 7339.6224017316. The cubic root of 53870057 is about 377.6728901207.

The spelling of 53870057 in words is "fifty-three million, eight hundred seventy thousand, fifty-seven".