51065384 has 16 divisors (see below), whose sum is σ = 95879700. Its totient is φ = 25497472.

The previous prime is 51065353. The next prime is 51065387. The reversal of 51065384 is 48356015.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50836900 + 228484 = 7130^2 + 478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51065384.

It is not an unprimeable number, because it can be changed into a prime (51065387) 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, 2372 + ... + 10380.

Almost surely, 2^51065384 is an apocalyptic number.

It is an amenable number.

51065384 is a deficient number, since it is larger than the sum of its proper divisors (44814316).

51065384 is a wasteful number, since it uses less digits than its factorization.

51065384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812 (or 8808 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 51065384 is about 7146.0047579049. The cubic root of 51065384 is about 371.0013876627.

The spelling of 51065384 in words is "fifty-one million, sixty-five thousand, three hundred eighty-four".