51396554 has 8 divisors (see below), whose sum is σ = 84103488. Its totient is φ = 23362060.

The previous prime is 51396551. The next prime is 51396563. The reversal of 51396554 is 45569315.

51396554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51396551) 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 3 ways as a sum of consecutive naturals, for example, 1168082 + ... + 1168125.

It is an arithmetic number, because the mean of its divisors is an integer number (10512936).

Almost surely, 2^51396554 is an apocalyptic number.

51396554 is a deficient number, since it is larger than the sum of its proper divisors (32706934).

51396554 is a wasteful number, since it uses less digits than its factorization.

51396554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336220.

The product of its digits is 81000, while the sum is 38.

The square root of 51396554 is about 7169.1389999079. The cubic root of 51396554 is about 371.8016680862.

The spelling of 51396554 in words is "fifty-one million, three hundred ninety-six thousand, five hundred fifty-four".