5251161256006 has 4 divisors (see below), whose sum is σ = 7876741884012. Its totient is φ = 2625580628002.

The previous prime is 5251161255973. The next prime is 5251161256031. The reversal of 5251161256006 is 6006521611525.

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

It is a super-2 number, since 2×5251161256006² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5251161256006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312790314000 + ... + 1312790314003.

It is an arithmetic number, because the mean of its divisors is an integer number (1969185471003).

Almost surely, 2^{5251161256006} is an apocalyptic number.

5251161256006 is a deficient number, since it is larger than the sum of its proper divisors (2625580628006).

5251161256006 is a wasteful number, since it uses less digits than its factorization.

5251161256006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625580628005.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 5251161256006 in words is "five trillion, two hundred fifty-one billion, one hundred sixty-one million, two hundred fifty-six thousand, six".