51700156 has 12 divisors (see below), whose sum is σ = 93595320. Its totient is φ = 24958640.

The previous prime is 51700109. The next prime is 51700163. The reversal of 51700156 is 65100715.

51700156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51700156² = 5345812260848672, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 51700156.

It is a congruent number.

It is an unprimeable number.

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, 222730 + ... + 222961.

It is an arithmetic number, because the mean of its divisors is an integer number (7799610).

Almost surely, 2^51700156 is an apocalyptic number.

It is an amenable number.

51700156 is a deficient number, since it is larger than the sum of its proper divisors (41895164).

51700156 is a wasteful number, since it uses less digits than its factorization.

51700156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445724 (or 445722 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 51700156 is about 7190.2820528822. The cubic root of 51700156 is about 372.5323149600.

The spelling of 51700156 in words is "fifty-one million, seven hundred thousand, one hundred fifty-six".