57215153 has 2 divisors, whose sum is σ = 57215154. Its totient is φ = 57215152.

The previous prime is 57215129. The next prime is 57215201. The reversal of 57215153 is 35151275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 9784384 = 6887^2 + 3128^2 .

It is a cyclic number.

It is not a de Polignac number, because 57215153 - 2⁶ = 57215089 is a prime.

It is not a weakly prime, because it can be changed into another prime (57215453) 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, 28607576 + 28607577.

It is an arithmetic number, because the mean of its divisors is an integer number (28607577).

Almost surely, 2^57215153 is an apocalyptic number.

It is an amenable number.

57215153 is a deficient number, since it is larger than the sum of its proper divisors (1).

57215153 is an equidigital number, since it uses as much as digits as its factorization.

57215153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5250, while the sum is 29.

The square root of 57215153 is about 7564.0698701162. The cubic root of 57215153 is about 385.3337253667. Note that the first 3 decimals are identical.

The spelling of 57215153 in words is "fifty-seven million, two hundred fifteen thousand, one hundred fifty-three".