51405526 has 8 divisors (see below), whose sum is σ = 81166680. Its totient is φ = 24349968.

The previous prime is 51405521. The next prime is 51405527. The reversal of 51405526 is 62550415.

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

It is a junction number, because it is equal to n+sod(n) for n = 51405494 and 51405503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51405521) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 676351 + ... + 676426.

It is an arithmetic number, because the mean of its divisors is an integer number (10145835).

Almost surely, 2^51405526 is an apocalyptic number.

51405526 is a deficient number, since it is larger than the sum of its proper divisors (29761154).

51405526 is a wasteful number, since it uses less digits than its factorization.

51405526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352798.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 51405526 is about 7169.7647102259. The cubic root of 51405526 is about 371.8233012517.

The spelling of 51405526 in words is "fifty-one million, four hundred five thousand, five hundred twenty-six".