51772806 has 24 divisors (see below), whose sum is σ = 113226984. Its totient is φ = 17095680.

The previous prime is 51772783. The next prime is 51772811. The reversal of 51772806 is 60827715.

It is a super-2 number, since 2×51772806² = 5360846882227272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11515 + ... + 15366.

It is an arithmetic number, because the mean of its divisors is an integer number (4717791).

Almost surely, 2^51772806 is an apocalyptic number.

51772806 is an abundant number, since it is smaller than the sum of its proper divisors (61454178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51772806 is a wasteful number, since it uses less digits than its factorization.

51772806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26996 (or 26993 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 51772806 is about 7195.3322369436. The cubic root of 51772806 is about 372.7067296846.

The spelling of 51772806 in words is "fifty-one million, seven hundred seventy-two thousand, eight hundred six".