51654142 has 16 divisors (see below), whose sum is σ = 78335712. Its totient is φ = 25544160.

The previous prime is 51654121. The next prime is 51654151. The reversal of 51654142 is 24145615.

It is a self number, because there is not a number n which added to its sum of digits gives 51654142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105823 + ... + 106309.

It is an arithmetic number, because the mean of its divisors is an integer number (4895982).

Almost surely, 2^51654142 is an apocalyptic number.

51654142 is a deficient number, since it is larger than the sum of its proper divisors (26681570).

51654142 is a wasteful number, since it uses less digits than its factorization.

51654142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 4800, while the sum is 28.

The square root of 51654142 is about 7187.0816052136. The cubic root of 51654142 is about 372.4217621671.

Adding to 51654142 its reverse (24145615), we get a palindrome (75799757).

The spelling of 51654142 in words is "fifty-one million, six hundred fifty-four thousand, one hundred forty-two".