57053533 has 2 divisors, whose sum is σ = 57053534. Its totient is φ = 57053532.

The previous prime is 57053489. The next prime is 57053567. The reversal of 57053533 is 33535075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 5184729 = 7202^2 + 2277^2 .

It is a cyclic number.

It is not a de Polignac number, because 57053533 - 2²¹ = 54956381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57053495 and 57053504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57053033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28526766 + 28526767.

It is an arithmetic number, because the mean of its divisors is an integer number (28526767).

Almost surely, 2^57053533 is an apocalyptic number.

It is an amenable number.

57053533 is a deficient number, since it is larger than the sum of its proper divisors (1).

57053533 is an equidigital number, since it uses as much as digits as its factorization.

57053533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 31.

The square root of 57053533 is about 7553.3789127780. The cubic root of 57053533 is about 384.9705560211.

The spelling of 57053533 in words is "fifty-seven million, fifty-three thousand, five hundred thirty-three".