5257666603 has 4 divisors (see below), whose sum is σ = 6008761840. Its totient is φ = 4506571368.

The previous prime is 5257666573. The next prime is 5257666607. The reversal of 5257666603 is 3066667525.

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

It is a cyclic number.

It is not a de Polignac number, because 5257666603 - 2⁵ = 5257666571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5257666607) 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, 375547608 + ... + 375547621.

It is an arithmetic number, because the mean of its divisors is an integer number (1502190460).

Almost surely, 2^5257666603 is an apocalyptic number.

5257666603 is a deficient number, since it is larger than the sum of its proper divisors (751095237).

5257666603 is an equidigital number, since it uses as much as digits as its factorization.

5257666603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751095236.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The square root of 5257666603 is about 72509.7690176986. The cubic root of 5257666603 is about 1738.8589210074.

The spelling of 5257666603 in words is "five billion, two hundred fifty-seven million, six hundred sixty-six thousand, six hundred three".