57222533 has 2 divisors, whose sum is σ = 57222534. Its totient is φ = 57222532.

The previous prime is 57222523. The next prime is 57222569. The reversal of 57222533 is 33522275.

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., 57047809 + 174724 = 7553^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 57222533 - 2²² = 53028229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57222496 and 57222505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57222523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28611266 + 28611267.

It is an arithmetic number, because the mean of its divisors is an integer number (28611267).

Almost surely, 2^57222533 is an apocalyptic number.

It is an amenable number.

57222533 is a deficient number, since it is larger than the sum of its proper divisors (1).

57222533 is an equidigital number, since it uses as much as digits as its factorization.

57222533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 29.

The square root of 57222533 is about 7564.5576870033. The cubic root of 57222533 is about 385.3502923103.

The spelling of 57222533 in words is "fifty-seven million, two hundred twenty-two thousand, five hundred thirty-three".