51471408 has 40 divisors (see below), whose sum is σ = 137261056. Its totient is φ = 16603200.

The previous prime is 51471397. The next prime is 51471421. The reversal of 51471408 is 80417415.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15808 + ... + 18783.

Almost surely, 2^51471408 is an apocalyptic number.

It is an amenable number.

51471408 is an abundant number, since it is smaller than the sum of its proper divisors (85789648).

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

51471408 is a wasteful number, since it uses less digits than its factorization.

51471408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34633 (or 34627 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 51471408 is about 7174.3576715968. The cubic root of 51471408 is about 371.9820779896.

It can be divided in two parts, 5147 and 1408, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 51471408 in words is "fifty-one million, four hundred seventy-one thousand, four hundred eight".