51206254 has 16 divisors (see below), whose sum is σ = 88202880. Its totient is φ = 22050360.

The previous prime is 51206231. The next prime is 51206333. The reversal of 51206254 is 45260215.

51206254 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 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 7 ways as a sum of consecutive naturals, for example, 60834 + ... + 61669.

It is an arithmetic number, because the mean of its divisors is an integer number (5512680).

Almost surely, 2^51206254 is an apocalyptic number.

51206254 is a deficient number, since it is larger than the sum of its proper divisors (36996626).

51206254 is a wasteful number, since it uses less digits than its factorization.

51206254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122535.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51206254 is about 7155.8545261904. The cubic root of 51206254 is about 371.3422250821.

Adding to 51206254 its reverse (45260215), we get a palindrome (96466469).

The spelling of 51206254 in words is "fifty-one million, two hundred six thousand, two hundred fifty-four".