51408016 has 20 divisors (see below), whose sum is σ = 108658224. Its totient is φ = 23367200.

The previous prime is 51408011. The next prime is 51408023. The reversal of 51408016 is 61080415.

It is not an unprimeable number, because it can be changed into a prime (51408011) 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, 145870 + ... + 146221.

Almost surely, 2^51408016 is an apocalyptic number.

It is an amenable number.

51408016 is an abundant number, since it is smaller than the sum of its proper divisors (57250208).

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

51408016 is a wasteful number, since it uses less digits than its factorization.

51408016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292110 (or 292104 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 51408016 is about 7169.9383539888. The cubic root of 51408016 is about 371.8293046600.

The spelling of 51408016 in words is "fifty-one million, four hundred eight thousand, sixteen".