530740257 has 4 divisors (see below), whose sum is σ = 707653680. Its totient is φ = 353826836.

The previous prime is 530740241. The next prime is 530740277. The reversal of 530740257 is 752047035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530740257 - 2⁴ = 530740241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530740207) 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, 88456707 + ... + 88456712.

It is an arithmetic number, because the mean of its divisors is an integer number (176913420).

Almost surely, 2^530740257 is an apocalyptic number.

It is an amenable number.

530740257 is a deficient number, since it is larger than the sum of its proper divisors (176913423).

530740257 is a wasteful number, since it uses less digits than its factorization.

530740257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176913422.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 530740257 is about 23037.8006111695. The cubic root of 530740257 is about 809.6438290814.

The spelling of 530740257 in words is "five hundred thirty million, seven hundred forty thousand, two hundred fifty-seven".