51356406 has 8 divisors (see below), whose sum is σ = 102712824. Its totient is φ = 17118800.

The previous prime is 51356381. The next prime is 51356443. The reversal of 51356406 is 60465315.

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

51356406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4279695 + ... + 4279706.

It is an arithmetic number, because the mean of its divisors is an integer number (12839103).

Almost surely, 2^51356406 is an apocalyptic number.

51356406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51356406 is a wasteful number, since it uses less digits than its factorization.

51356406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559406.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 51356406 is about 7166.3383955825. The cubic root of 51356406 is about 371.7048329185.

The spelling of 51356406 in words is "fifty-one million, three hundred fifty-six thousand, four hundred six".