51069384 has 48 divisors (see below), whose sum is σ = 144331200. Its totient is φ = 16282464.

The previous prime is 51069373. The next prime is 51069391. The reversal of 51069384 is 48396015.

51069384 is a `hidden beast` number, since 510 + 69 + 3 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13764 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (3006900).

Almost surely, 2^51069384 is an apocalyptic number.

It is an amenable number.

51069384 is an abundant number, since it is smaller than the sum of its proper divisors (93261816).

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

51069384 is a wasteful number, since it uses less digits than its factorization.

51069384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30874 (or 30867 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 51069384 is about 7146.2846290922. The cubic root of 51069384 is about 371.0110743734.

The spelling of 51069384 in words is "fifty-one million, sixty-nine thousand, three hundred eighty-four".