57402229 has 2 divisors, whose sum is σ = 57402230. Its totient is φ = 57402228.

The previous prime is 57402193. The next prime is 57402259. The reversal of 57402229 is 92220475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36881329 + 20520900 = 6073^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 57402229 - 2¹¹ = 57400181 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57402229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57402259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28701114 + 28701115.

It is an arithmetic number, because the mean of its divisors is an integer number (28701115).

Almost surely, 2^57402229 is an apocalyptic number.

It is an amenable number.

57402229 is a deficient number, since it is larger than the sum of its proper divisors (1).

57402229 is an equidigital number, since it uses as much as digits as its factorization.

57402229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57402229 is about 7576.4258724018. The cubic root of 57402229 is about 385.7532428285.

The spelling of 57402229 in words is "fifty-seven million, four hundred two thousand, two hundred twenty-nine".