57030233 has 6 divisors (see below), whose sum is σ = 61754814. Its totient is φ = 52643136.

The previous prime is 57030227. The next prime is 57030263. The reversal of 57030233 is 33203075.

It can be written as a sum of positive squares in 3 ways, for example, as 299209 + 56731024 = 547^2 + 7532^2 .

It is not a de Polignac number, because 57030233 - 2⁸ = 57029977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57030199 and 57030208.

It is not an unprimeable number, because it can be changed into a prime (57030263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168560 + ... + 168897.

It is an arithmetic number, because the mean of its divisors is an integer number (10292469).

Almost surely, 2^57030233 is an apocalyptic number.

It is an amenable number.

57030233 is a deficient number, since it is larger than the sum of its proper divisors (4724581).

57030233 is a wasteful number, since it uses less digits than its factorization.

57030233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337483 (or 337470 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 23.

The square root of 57030233 is about 7551.8363991813. The cubic root of 57030233 is about 384.9181430514.

It can be divided in two parts, 570 and 30233, that added together give a palindrome (30803).

The spelling of 57030233 in words is "fifty-seven million, thirty thousand, two hundred thirty-three".