5251457667 has 4 divisors (see below), whose sum is σ = 7001943560. Its totient is φ = 3500971776.

The previous prime is 5251457647. The next prime is 5251457719. The reversal of 5251457667 is 7667541525.

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

It is not a de Polignac number, because 5251457667 - 2⁸ = 5251457411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251457647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875242942 + ... + 875242947.

It is an arithmetic number, because the mean of its divisors is an integer number (1750485890).

Almost surely, 2^5251457667 is an apocalyptic number.

5251457667 is a deficient number, since it is larger than the sum of its proper divisors (1750485893).

5251457667 is a wasteful number, since it uses less digits than its factorization.

5251457667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750485892.

The product of its digits is 1764000, while the sum is 48.

The square root of 5251457667 is about 72466.9418907684. The cubic root of 5251457667 is about 1738.1741611880.

The spelling of 5251457667 in words is "five billion, two hundred fifty-one million, four hundred fifty-seven thousand, six hundred sixty-seven".