51556356046 has 8 divisors (see below), whose sum is σ = 83283344424. Its totient is φ = 23795241240.

The previous prime is 51556356041. The next prime is 51556356053. The reversal of 51556356046 is 64065365515.

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 = 51556355987 and 51556356005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51556356041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991468360 + ... + 991468411.

It is an arithmetic number, because the mean of its divisors is an integer number (10410418053).

Almost surely, 2^51556356046 is an apocalyptic number.

51556356046 is a deficient number, since it is larger than the sum of its proper divisors (31726988378).

51556356046 is a wasteful number, since it uses less digits than its factorization.

51556356046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982936786.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 51556356046 in words is "fifty-one billion, five hundred fifty-six million, three hundred fifty-six thousand, forty-six".