51184073 has 4 divisors (see below), whose sum is σ = 51690948. Its totient is φ = 50677200.

The previous prime is 51184037. The next prime is 51184103. The reversal of 51184073 is 37048115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43072969 + 8111104 = 6563^2 + 2848^2 .

It is a cyclic number.

It is not a de Polignac number, because 51184073 - 2⁶ = 51184009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51184013) 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, 253286 + ... + 253487.

It is an arithmetic number, because the mean of its divisors is an integer number (12922737).

Almost surely, 2^51184073 is an apocalyptic number.

It is an amenable number.

51184073 is a deficient number, since it is larger than the sum of its proper divisors (506875).

51184073 is a wasteful number, since it uses less digits than its factorization.

51184073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506874.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 51184073 is about 7154.3045084760. The cubic root of 51184073 is about 371.2885992660.

The spelling of 51184073 in words is "fifty-one million, one hundred eighty-four thousand, seventy-three".