5251268306 has 4 divisors (see below), whose sum is σ = 7876902462. Its totient is φ = 2625634152.

The previous prime is 5251268287. The next prime is 5251268353. The reversal of 5251268306 is 6038621525.

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

It can be written as a sum of positive squares in only one way, i.e., 4264743025 + 986525281 = 65305^2 + 31409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5251268306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312817075 + ... + 1312817078.

Almost surely, 2^5251268306 is an apocalyptic number.

5251268306 is a deficient number, since it is larger than the sum of its proper divisors (2625634156).

5251268306 is a wasteful number, since it uses less digits than its factorization.

5251268306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625634155.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 5251268306 is about 72465.6353453139. The cubic root of 5251268306 is about 1738.1532688076.

The spelling of 5251268306 in words is "five billion, two hundred fifty-one million, two hundred sixty-eight thousand, three hundred six".