51106870 has 16 divisors (see below), whose sum is σ = 92104128. Its totient is φ = 20417920.

The previous prime is 51106829. The next prime is 51106871. The reversal of 51106870 is 7860115.

It is a happy number.

51106870 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 2×51106870² = 5223824322393800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106871) 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 7 ways as a sum of consecutive naturals, for example, 7155 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (5756508).

Almost surely, 2^51106870 is an apocalyptic number.

51106870 is a deficient number, since it is larger than the sum of its proper divisors (40997258).

51106870 is a wasteful number, since it uses less digits than its factorization.

51106870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 51106870 is about 7148.9069094513. The cubic root of 51106870 is about 371.1018288110.

Adding to 51106870 its reverse (7860115), we get a palindrome (58966985).

The spelling of 51106870 in words is "fifty-one million, one hundred six thousand, eight hundred seventy".