57768253 has 4 divisors (see below), whose sum is σ = 58363900. Its totient is φ = 57172608.

The previous prime is 57768247. The next prime is 57768259. The reversal of 57768253 is 35286775.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57768247) and next prime (57768259).

It can be written as a sum of positive squares in 2 ways, for example, as 38601369 + 19166884 = 6213^2 + 4378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57768253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57768259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297678 + ... + 297871.

It is an arithmetic number, because the mean of its divisors is an integer number (14590975).

Almost surely, 2^57768253 is an apocalyptic number.

It is an amenable number.

57768253 is a deficient number, since it is larger than the sum of its proper divisors (595647).

57768253 is an equidigital number, since it uses as much as digits as its factorization.

57768253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595646.

The product of its digits is 352800, while the sum is 43.

The square root of 57768253 is about 7600.5429411326. The cubic root of 57768253 is about 386.5714218276.

The spelling of 57768253 in words is "fifty-seven million, seven hundred sixty-eight thousand, two hundred fifty-three".