51406270 has 32 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 19649280.

The previous prime is 51406213. The next prime is 51406279. The reversal of 51406270 is 7260415.

51406270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51406279) 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 15 ways as a sum of consecutive naturals, for example, 29010 + ... + 30730.

It is an arithmetic number, because the mean of its divisors is an integer number (3022110).

Almost surely, 2^51406270 is an apocalyptic number.

51406270 is a deficient number, since it is larger than the sum of its proper divisors (45301250).

51406270 is a wasteful number, since it uses less digits than its factorization.

51406270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51406270 is about 7169.8165945859. The cubic root of 51406270 is about 371.8250950615.

Adding to 51406270 its reverse (7260415), we get a palindrome (58666685).

The spelling of 51406270 in words is "fifty-one million, four hundred six thousand, two hundred seventy".