51156206 has 4 divisors (see below), whose sum is σ = 76734312. Its totient is φ = 25578102.

The previous prime is 51156181. The next prime is 51156241. The reversal of 51156206 is 60265115.

51156206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 as a sum of consecutive naturals, namely, 12789050 + ... + 12789053.

It is an arithmetic number, because the mean of its divisors is an integer number (19183578).

Almost surely, 2^51156206 is an apocalyptic number.

51156206 is a deficient number, since it is larger than the sum of its proper divisors (25578106).

51156206 is a wasteful number, since it uses less digits than its factorization.

51156206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578105.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51156206 is about 7152.3566745514. The cubic root of 51156206 is about 371.2212047485.

The spelling of 51156206 in words is "fifty-one million, one hundred fifty-six thousand, two hundred six".