51354656 has 12 divisors (see below), whose sum is σ = 101104542. Its totient is φ = 25677312.

The previous prime is 51354643. The next prime is 51354733. The reversal of 51354656 is 65645315.

It can be written as a sum of positive squares in only one way, i.e., 45104656 + 6250000 = 6716^2 + 2500^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802385 + ... + 802448.

Almost surely, 2^51354656 is an apocalyptic number.

It is an amenable number.

51354656 is a deficient number, since it is larger than the sum of its proper divisors (49749886).

51354656 is a wasteful number, since it uses less digits than its factorization.

51354656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604843 (or 1604835 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 51354656 is about 7166.2162959263. The cubic root of 51354656 is about 371.7006108496.

The spelling of 51354656 in words is "fifty-one million, three hundred fifty-four thousand, six hundred fifty-six".